Question

Southern republicans worked to prevent injustice but there was little they could do to

Answer 1

Given what you provided, I'd say the answer is "C"
Step-by-step explanation:

The Southern Republicans would've been able to prevent the other choices, however, the actions taken by slaves would've been out of their power.

Answer 2

Prevent acts of violence against former slaves.

Step-by-step explanation:

A...p...e...x