Đáp án C.
- impediment (n): trở ngại, sự ngăn cản phát triển
>< C. furtherance (n): sự tiến bộ.
Ex: He took the actions in the furtherance of his career.
A. hindrance (n): trở ngại
Ex: We were allowed to travel around the country without hindrance.
B. obstruction (n): sự ngáng đường
Ex: The abandoned car paused an obstruction.
D. setback (n): vấn đề, khó khăn
Ex: The rumor of his corruption was a serious setback to his career.