다음 글의 밑줄 친 부분 중, 어법상 옳지 않은 것은? To "win … | [법원직 9급 영어] 16년 1회차 기출문제 상세 페이지

다음 글의 밑줄 친 부분 중, 어법상 옳지 않은 것은? 
To "win hands down" which means to "win easily" or "win with little or no effort" has ①its origins in horse racing. In a close, photo-finish race, a jockey ②typically strikes his horse with a bat or the reins to force it to maintain or increase speed. When the horse is leading by several lengths and a win is assured, the jockey will usually cease striking the horse or let the reins ③go loose: In effect, he puts his "hands down." The expression ④was appeared in the mid-19th century; by the end of the century, it was being used outside of horse racing to mean "with no trouble at all."

①

②

③

④