54. Which statement below is incorrect about today＇s social scientists? (A) They refute the idea that events occurring in human society are largely accidental. (B) They assert that there are regular patterns in most human activities. (C) They employ the ideas of class and kinship to describe human activities. (D) They usually stay within the scope of their own ideas in their research. (E) They have distinctive concepts and terminologies for their own disciplines.