we often hear that people change only when a crisis ⓐ compels them to, (a) which / it implies that we need to create a sense of fear or anxiety or misfortune첫번째 문장에서 compels them to 로 이렇게 불완전하게 끝나도 되나요?a가 which 인 이유가 머죠???부탁드릴게요~~ㅠ