Answer:
B. Restrictions on the rights of African Americans.
Explanation:
After Bourbon Trimvirate gained power, they started to implemented series of legislations leading up to Racial Segregation in Southern States.
The segregation prevented African Americans from obtaining the programs and infrastructures that reserved for white people. Leaving them with only access to lower quality schools, lower job opportunities, more difficulties to obtain loans, etc.
This situation massively damaged African Americans community and contributed to the income disparity that they felt compared to white citizens today.