Which of the following most logically completes the argument?
When people engage in activities that help others,their brain releases endorphins, the brain’s natural opiates, which induce in people a feeling of well-being. It has been suggested that regular release of endorphins increases people’s longevity. And a statistic on adults who regularly engage in volunteer work helping others shows that they live longer, on average, than adults who do not volunteer. However, that statistic would be what we would expect even if volunteering does not boost longevity, because.
A.in the communities studied, women were much more likely to do regular volunteer work than men were, and women tend to live longer than men do.
B.the number of young adults who do regular volunteer work is on the increase
C.the feelings of well-being induced by endorphins can, at least for a time, mask the symptoms of various conditions and diseases, provided the symptoms are mild.
D.it is rare for a person to keep up a regular schedule of volunteer work throughout his or her life.
E.Some people find that keeping a commitment to do regular volunteer work becomes a source of stress in their lives.
看到两个不同版本的答案，一个是A，一个是C，请问到底应该是哪一个？作者: maggie1121 时间: 2010-8-1 23:21
C is understandable. A states the comparison between men and women, which I think is irrelavant with the gender issue.作者: sugaryun 时间: 2010-8-1 23:54
我觉得是C。最后一句可以看出作者的观点是支持做义工增加寿命的。C是一个加强。而A说的是男女的差别，跟这个没关系。作者: sunming_01 时间: 2010-8-2 21:26
多谢啦！