What boxer refused to go to Vietnam saying ‘I ain’t got no quarrel with them Viet Cong’ and No Viet Cong ever called me a nigger’?

Question: What boxer refused to go to Vietnam saying ‘I ain’t got no quarrel with them Viet Cong’ and No Viet Cong ever called me a nigger’?

Options:

Muhammad Ali

Joe Frazier

Archie Moore

George Foreman

Correct answer:

Muhammad Ali