单选题 In time, the woman was persuaded to try this new form of discipline and to______a failure to go to time out by the withdrawal of some privilege______.
【正确答案】 B
【答案解析】[解析] 本题答案是B。B项的意思是：支持，援助；(资料)备份；倒退。根据句中“获得支持”可知只有back up符合题意。