I believe the answer is C
In his old age he became a communist and during the cold war it was just too tough to be a communist in the US. He went to Ghana after it became the first African country. DuBios has worked for African independence all his life, and was invited to enjoy it by Kwame Nkrumah, his old friend, and Ghana's first president.
Answer:
The Atlantic Charter was a joint declaration released by U.S. President Franklin D. Roosevelt and British Prime Minister Winston Churchill on August 14, 1941 following a meeting of the two heads of government in Newfoundland. The Atlantic Charter provided a broad statement of U.S. and British war aims.