题目

阅读下面的文言文，完成小题。 向雄字茂伯，河内山阳人也。父韶，彭城太守。雄初仕郡为主簿，事太守王经。及经之死也，雄哭之尽哀，市人咸为之悲。后太守刘毅尝以非罪笞雄，及吴奋代毅为太守，又以少言遣系雄于狱。司隶钟会于狱中辟雄为都官从事，会死无人殡殓，雄迎丧而葬之。文帝召雄而责之曰：“往者王经之死，卿哭王经于东市，我不问也。今钟会躬为叛逆，又辄收葬，若复相容，其如王法何？”雄曰昔者先王掩骼埋胔仁流朽骨当时It was        most of the students were unable to work out.A. too difficult a problem as      B. a too difficult problem that C. so difficult a problem that     D. such a difficult problem as