Answer:
Institutionalization of Jim Crowe laws and increased availability of manufacturing jobs.
Explanation:
After the return to power of white democratic leaders in the South during late XIX century, local government encated laws to limit the political participation of African-Americans and also to segregate them. At the same time, Northern and Western states opened a number of job positions, specially in the steelmaker industry, where this population saw a new opportunity to leave behind discrimination in the South.
Slaves and peasants were dying quickly and vastly caused a high loss of work for the upperclass civilians... the peasants could go on "stike". They were able to demand more turning the system on its head.
I believe it’s c, Great Wall.
<span>Ogodei Khan oversaw the greatest territorial expansion of mongol histroy</span>