She had to ( ) after the first round because she sprainded he

She had to ( ) after the first round because she sprainded her wrist.
A、run out
B、drop out
C、draw out
D、come out
【正确答案】：B
【题目解析】：run out 用完，drop out 退出，draw out 天黑渐晚， come out 出现，句子含义是第一轮她不得不退出，因为扭伤了关节。