The line between failure and success is so fine that what seems hopeless failure may turn to success.

obedient 意為「服從的、順從的」。官方公告此題正解為 B。可解讀為:看似絕望的失敗會「順服(轉化)」為成功,即失敗最終屈服於成功。雖然 obedient 修飾抽象名詞 success 並非常見搭配,且本題答案確實存在語意爭議,但官方公告答案即為此選項,作答應以此為準。