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BRAINLIEST TO CORRECT ANSWER!!!!

John Quincy Adams helped oppose the spread of slavery by:

A. defeating a rule that made it difficult to discuss abolition in Congress.

B. organizing groups of African Americans to create a new country in Africa.

C. freeing all of the people enslaved by him, after he was elected president of the United States

D. forming the first major abolition society in the United States.​