A federal statute prohibits the construction of nuclear energy plants in this country without a license from the Federal Nuclear Plant Siting Commission. The statute provides that the Commission may issue a license authorizing the construction of a proposed nuclear energy plant 30 days after the Commission makes a finding that the plant will comply with specified standards of safety, technological and commercial feasibility, and public convenience. In a severable provision, the Commission's enabling statute also provides that the Congress, by simple majorities in each house, may veto the issuance of a particular license by the Commission if such a veto occurs within 30 days following the required Commission finding. Early last year, the Commission found that Safenuke, Inc., met all statutory requirements and, therefore, voted to issue Safenuke, Inc., a license authorizing it to construct a nuclear energy plant. Because they believed that the issuance of a license to Safenuke, Inc., was not in accord with the applicable statutory criteria, a majority of each of the two houses of Congress voted, within the specified 30-day period, to veto the license. On the basis of that veto, the Commission refused to issue the license. Subsequently, Safenuke, Inc., sued the Commission in an appropriate federal district court, challenging the constitutionality of the Commission's refusal to issue the license. In this suit, the court should hold the congressional veto of the license of Safenuke, Inc., to be 
invalid, because any determination by Congress that particular agency action does not satisfy statutory criteria violates Article III, Section 1 of the Constitution because it constitutes the performance of a judicial function by the legislative branch.  invalid, because Article I, Section 7 of the Constitution has been interpreted to mean that any action of Congress purporting to alter the legal rights of persons outside of the legislative branch must be presented to the President for his signature or veto.  valid, because Congress has authority under the commerce clause to regulate the construction of nuclear energy plants.  valid, because there is a compelling national interest in the close congressional supervision of nuclear plant siting in light of the grave dangers to the public health and safety that are associated with the operation of such plants.
Question: A federal statute prohibits the construction of nuclear energy plants in this country without a license from the Federal Nuclear Plant Siting Commission. The statute provides that the Commission may issue a license authorizing the construction of a proposed nuclear energy plant 30 days after the Commission makes a finding that the plant will comply with specified standards of safety, technological and commercial feasibility, and public convenience. In a severable provision, the Commission's enabling statute also provides that the Congress, by simple majorities in each house, may veto the issuance of a particular license by the Commission if such a veto occurs within 30 days following the required Commission finding. Early last year, the Commission found that Safenuke, Inc., met all statutory requirements and, therefore, voted to issue Safenuke, Inc., a license authorizing it to construct a nuclear energy plant. Because they believed that the issuance of a license to Safenuke, Inc., was not in accord with the applicable statutory criteria, a majority of each of the two houses of Congress voted, within the specified 30-day period, to veto the license. On the basis of that veto, the Commission refused to issue the license. Subsequently, Safenuke, Inc., sued the Commission in an appropriate federal district court, challenging the constitutionality of the Commission's refusal to issue the license. In this suit, the court should hold the congressional veto of the license of Safenuke, Inc., to be 
A. invalid, because any determination by Congress that particular agency action does not satisfy statutory criteria violates Article III, Section 1 of the Constitution because it constitutes the performance of a judicial function by the legislative branch. 
B. invalid, because Article I, Section 7 of the Constitution has been interpreted to mean that any action of Congress purporting to alter the legal rights of persons outside of the legislative branch must be presented to the President for his signature or veto. 
C. valid, because Congress has authority under the commerce clause to regulate the construction of nuclear energy plants. 
D. valid, because there is a compelling national interest in the close congressional supervision of nuclear plant siting in light of the grave dangers to the public health and safety that are associated with the operation of such plants.
Answer: