It's really complex, and you will have to understand it to answer properly. Can I suggest that you google it?
The gap was smallest in the north and widest in the south where registration of voters as well as voting was systematically frustrated despite there being of constitutional instruments that postured against it. in some voting centers and registrations centers in the south blacks were literally sent away.
Explanation:
he wasn't doing good things
Your answers are correct. A&C.