Question

which tactic did some southern states use to restrict african american voting rights (8.3)
loyalty oaths
literacy tests
school segregation
identification cards

Explanation:

Literacy tests were used in some southern states to restrict African - American voting rights. They were designed to be difficult and often administered in a discriminatory manner, with different standards for white and Black voters. Identification cards and school segregation were not directly related to restricting voting rights in this context. Loyalty oaths were not the main tactic for this purpose.

Answer:

Literacy Tests