Southern Republicans worked to prevent injustice but there was little they
could do to:
D
A. Support churches that helped former slaves.
B. Encourage former slaves to vote.
O
C. Prevent acts of violence against former slaves.
O
D. Increase education of former slaves.
BM

Given what you provided, I'd say the answer is "C"

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.

the protestant reformation's started in 1517, disturbing the religious and political order in europe´s catholic countries. the outcome was the european wars of religion prosecuted in europe in the 16th, 17th and part of the 18th century. nonetheless, uprisings, territorial disputes, and great power conflicts were also causes of the wars.  

d. william mckinley's southern upbringing him win.