Did you point out her mistake?Yes,I'd -------that.A.rather n

选A would rather do sth 或者 would rather not do sth .rather 后面的动词都
要接动词原形.
根据题意,这里有表示后悔之意,I'd rather not have done that
即"我宁愿没有那样做" ,所以选A
翻译:你指出他的错误了嘛?是的,(我指出了他的错误) 我宁愿没有(指出他的错误)