The lobbyists argued that because there is no statistical evidence that breathing other people’s tobacco smoke increases the incidence of heart disease or lung cancer in healthy nonsmokers, legislation banning smoking in workplaces cannot be justified on health grounds.

6. Of the following, which is the best criticism of the argument reported above?

(A) It ignores causes of lung cancer other than smoking.

(B) It neglects the damaging effects of smoke-filled air on nonsmokers who are not healthy.

(C) It fails to mention the roles played by diet, exercise, and heredity in the development of heart disease.

(D) It does not consider the possibility that nonsmokers who breathe smoke-filled air at work may become more concerned about their health.（B）

(E) It does not acknowledge that nonsmokers, even those who breathe smoke-filled air at work, are in general healthier than smokers.

文章是集中在讨论healthy non-smoker ,所以B说neglects the damaging effects of smoke-filled air on nonsmokers who are not healthy没有问题

我想问的是D，是否错在become more concerned about their health，原文并没有讨论是否更加concern，而我理解的是在工作场合吸二手烟健康肯定会受到损害，而文章并没有考虑到这一点。这里more concerned about their health不等于健康肯定会受到损害？是这样排除的么？？

谢谢！！