문제 ) 문맥상 의미가 알맞은 것은?

In 1967, at the peak of his career , Muhammad Ali refused to be drafted

into the army on religious grounds. Consequently , the boxing commission took

away his title.

1) surface of the earth
2) a reason for action
3) a basis for an argument

답이 3번이라고 하는데,,

2번도 가능하지 않나요??

왜 3번인지....-_-;;