How did literacy test laws affect politics in the south after civil war ? a. they allowed states to avoid enforcing the fifteenth amendment
b. they helped radical republicans dominate stave government
c. they led state government to increase funding for education
d. they prevented many former slaves from voting

I would say they allowed states to avoid enforcing the fifteenth amendment

Explanation:

The 15th Amendment to the U.S. Constitution granted African American men the right to vote by declaring that the "right of citizens of the United States to vote shall not be denied or abridged by the United States or by any state on account of race, color, or previous condition of servitude." Although ratified on February 3, 1870, the promise of the 15th Amendment would not be fully realized for almost a century. Through the use of poll taxes, literacy tests and other means, Southern states were able to effectively disenfranchise African Americans. It would take the passage of the Voting Rights Act of 1965 before the majority of African Americans in the South were registered to vote.

hold on ill go look

because the vietnam war was fought in an especially brutal and untraditional way