How did Sharecropping suppress the rights of Black People?

In addition, while sharecropping gave African Americans autonomy in their daily work and social lives, and freed them from the gang-labor system that had dominated during the slavery era, it often resulted in sharecroppers owing more to the landowner (for the use of tools and other supplies, for example) than they were able to repay.

Explanation:

the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.