Questions 14-16 are based on the following passage. You now have 15 seconds to read the questions 14-16. 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.