Kelly County, in the state of Green, is located adjacent to the border of the state of Red. The communities located in Kelly County are principally suburbs of Scarletville, a large city located in Red, and therefore there is a large volume of traffic between that city and Kelly County. While most of that traffic is by private passenger automobiles, some of it is by taxicabs and other kinds of commercial vehicles. An ordinance of Kelly County, the stated purpose of which is to reduce traffic congestion, provides that only taxicabs registered in Kelly County may pick up or discharge passengers in the county. The ordinance also provides that only residents of Kelly County may register taxicabs in that county. Which of the following is the proper result in a suit brought by Scarletville taxicab owners challenging the constitutionality of this Kelly County ordinance? 
Judgment for Scarletville taxicab owners, because the fact that private passenger automobiles contribute more to the traffic congestion problem in Kelly County than do taxicabs indicates that the ordinance is not a reasonable means by which to solve that problem.  Judgment for Scarletville taxicab owners, because the ordinance unduly burdens interstate commerce by insulating Kelly County taxicab owners from out-ofstate competition without adequate justification.  Judgment for Kelly County, because the ordinance forbids taxicabs registered in other counties of Green as well as in states other than Green to operate in Kelly County and, therefore, it does not discriminate against interstate commerce.  Judgment for Kelly County, because Scarletville taxicab owners do not constitute a suspect class and the ordinance is reasonably related to the legitimate governmental purpose of reducing traffic congestion. 
Question: Kelly County, in the state of Green, is located adjacent to the border of the state of Red. The communities located in Kelly County are principally suburbs of Scarletville, a large city located in Red, and therefore there is a large volume of traffic between that city and Kelly County. While most of that traffic is by private passenger automobiles, some of it is by taxicabs and other kinds of commercial vehicles. An ordinance of Kelly County, the stated purpose of which is to reduce traffic congestion, provides that only taxicabs registered in Kelly County may pick up or discharge passengers in the county. The ordinance also provides that only residents of Kelly County may register taxicabs in that county. Which of the following is the proper result in a suit brought by Scarletville taxicab owners challenging the constitutionality of this Kelly County ordinance? 
A. Judgment for Scarletville taxicab owners, because the fact that private passenger automobiles contribute more to the traffic congestion problem in Kelly County than do taxicabs indicates that the ordinance is not a reasonable means by which to solve that problem. 
B. Judgment for Scarletville taxicab owners, because the ordinance unduly burdens interstate commerce by insulating Kelly County taxicab owners from out-ofstate competition without adequate justification. 
C. Judgment for Kelly County, because the ordinance forbids taxicabs registered in other counties of Green as well as in states other than Green to operate in Kelly County and, therefore, it does not discriminate against interstate commerce. 
D. Judgment for Kelly County, because Scarletville taxicab owners do not constitute a suspect class and the ordinance is reasonably related to the legitimate governmental purpose of reducing traffic congestion. 
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