单选题 If it is true that morality cannot exist without religion, then does not the erosion of religion herald the ______ of morality?
【正确答案】 D
【答案解析】[解析] regulation“管理,规则”;basis“基础,底部”;belief“信仰,教义”;collapse “失败,衰竭”。根据句意和各个选项的意思可知,正确答案是D。