Answer:
The right answer is A) Literacy tests were banned and federal enforcement powers strengthened.
Step-by-step explanation:
The Voting Rights Act of 1965 intended to eliminate barriers erected in southern states that impeded African-Americans from voting, a violation of the 15th Amendment. One common obstacle used to block black people was to make them pass literacy tests. This population had lived for centuries in opression, poverty and lack of education opportunities. That was a repugnant racist trick to make ineffective the rights of a good part of American society.