Answer:
A
Explanation:
The Southern Plantation Owners were afraid that without slaves they would have to pay people to work in their plantations which would mean less profit and in the worst case even losing your farm.
You haven't provided a specific case, but if the question is in general, then the supreme court challenges in based on the legislature that the congress passes. The supreme court provides judicial review of the legislature passed by the congress and deems whether or not the legislature is unconstitutional, in which case it can abolish it.