Please help me and answer correctly and if you do then I will give you brainliest!!!!!!!!!!!!

The American Colonization Society attempted to fight the spread of slavery by:
(A) Requiring its members to free all of the people enslaved, after the members died.
(B) Organizing groups of African Americans to create a new country in Africa.
(C) Forming the first major ablation society in the United States.
(D) Defeating a rule that made it difficult to discuss ablation in Congress.