Although it was expected that workers under forty would show hostility to the plan, the research report indicates that both ( younger and the older people ) approve of governmental appropriations for Social Security. (A) younger and the older people (B) younger people and the older (C) the younger and the older (D) younger and older people (E) people who are younger and those who are older 答案是D，错选了C。the加形容词不是可以表示一类人吗？而且感觉C在句意表达清楚的前提下看起来也比较工整。C和D的区别在哪？麻烦老师讲解。