After reconstruction, many southern states
a
required african american and white voters to use separate voting booths
b
urged local business owners to serve people of all races
c
prosecuted the leaders of lynch mobs
d
passed laws forbidding marriage between african americans and whites

A. required African American and white voters to use separate voting booths

Explanation:

After Reconstruction, many Southern states required African American and white voters to use separate voting booths .

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.

4 copper and gold, the california gold rush is why im pretty sure.