How were African Americans affected by the Black Codes?

Under the Black Codes, all Black people, convicts or not, were subject to curfews set by their local governments. Even their day-to-day movements were heavily dictated by the state. Black farm workers were required to carry passes from their employers, and meetings Black people took part in were overseen by local officials.

Explanation:

the answer should be a. the sui empire, the tang empire extended from korea in the west to manchuria in the east.

the answer is d. generally groups lived large cities comparable in size to the largest european cities.