Answer:
[B] Only State A and State B can take action against Bill.
Explanation:
This is because the whole details of the transaction took place between State A and State B. This is why the states involved can take action against Bill. If not, then all the States would have had the right to take action against Bill.
This analysis validates that Only State A and State B would be able to take action against Bill.
The Supreme Court is the head of the Judicial Branch.
If I had to give myself a nickname, it would be T