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When did Ali announce that he had become a Black Muslim?
A.
He announced that he had become a Black Muslim after defeating Liston in a championship fight.
B.
He announced that he had become a Black Muslim while he was still an amateur boxer.
C.
He announced that he had become a Black Muslim after the Vietnam War.
D.
He announced that he had become a Black Muslim when he retired form. boxing in 1980.