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
我看到答案是A，给的推理解释如下，
文章内容“a statistic on adults who regularly engage in volunteer work”加A选项内容“in the communities studied, women were much more likely to do regular volunteer work than men were”，可以推出，a majority f those who regularly engage in volunteer work are women，而女性本身就比男性长寿是common sense，则可以得出结论，即便做volunteer work不能导致长寿统计结果也会和预期的一样。因此A选项显然正确
