After 1965, black civil rights leaders found it difficult to

a. protest the vietnam war.
b. now support hispanic rights in the united states.
c. achieve economic equality in the north.
d. enforce the new laws in the south

The correct answer is D. enforce new laws in the South. The problem was that there were still a lot of racially discriminatory laws in the south and a lot of social discrimination which made it difficult to enforce new laws,such as the prohibiton of racial discrimination of voting.