GRE Reading Comprehension: ETS-GRE阅读ETS - B43EXRDDMH9Q526P7

If the argument in the passage is valid, taboos against eating in the presence of others who are not also eating would be LEAST likely in a society that A. had always had a plentiful supply of food B. emphasized the need to share worldly goods C. had a nomadic rather than an agricultural way of life D. emphasized the value of privacy E. discouraged overindulgence