Answer:
D: After World War II, African Americans were in a position to start challenging
long-standing restrictions of their rights in South Carolina.
Step-by-step explanation:
The court case Elmore v. Rice was caused by a scenario when George Elmore and some other African Americans wanted to vote in the August 1947 primary but were not allowed to do so. This made the head of the South Carolina NAACP conference legal committee to filed a class-action suit.
In 1948, Judge Waring issued an injunction instructing the state Democratic Party to make it's membership opened and accept all parties without considering their race, colour, condition, to take part in the August 1947 primary.