Question

What feature of a confederal system did the Confederate States of America most want?

Answer 1

I believe the answer is: C.a limited central government linking independent states
The confederate states wanted the states have the full authority in determining the regulations that they could impose to their people.
This means that if a there is a contradicting regulation between states and central government, the regulation from the central government would be overruled. 

Answer 2

For the most part, the Confederate States of America wanted C.a limited central government linking independent states