There is high and persistent unemployment in the industrialized state of Green. Its legislature therefore enacted a statute requiring every business with annual sales in Green of over $1 million to purchase each year goods and/or services in Green equal in value to at least half of its sales in Green Which of the following parties most clearly has standing to contest the constitutionality of this statute of Green in federal court?
A business in another state that supplies from that other state 95 percent of the goods and services bought by a corporation that has annual sales in Green of $20 million. A corporation selling $300,000 worth of goods in Green but presently purchasing only $10,000 in goods and services in Green.  The governor of an adjacent state on behalf of the state and its residents. The owner of high-grade, secured bonds issued by a corporation with sales in Green of $10 million that currently purchases only $1 million in goods and services in Green.
Question: There is high and persistent unemployment in the industrialized state of Green. Its legislature therefore enacted a statute requiring every business with annual sales in Green of over $1 million to purchase each year goods and/or services in Green equal in value to at least half of its sales in Green Which of the following parties most clearly has standing to contest the constitutionality of this statute of Green in federal court?
A. A business in another state that supplies from that other state 95 percent of the goods and services bought by a corporation that has annual sales in Green of $20 million.
B. A corporation selling $300,000 worth of goods in Green but presently purchasing only $10,000 in goods and services in Green. 
C. The governor of an adjacent state on behalf of the state and its residents.
D. The owner of high-grade, secured bonds issued by a corporation with sales in Green of $10 million that currently purchases only $1 million in goods and services in Green.
Answer: