A（n） ___________ is one who sits for an exam or enters into a co

A（n） ___________ is one who sits for an exam or enters into a competition in the name of another.
A、examiner
B、educator
C、ringer
D、trainer
【正确答案】：C
【题目解析】：ringer  n. 冒名顶替的运动员；替身；替补。句意：替身是指以别人的名义参加考试或竞赛的人。