题目选项分析

Mr. Lawson: We should adopt a national family policy that includes legislation requiring employers to provide paid parental leave and establishing government-sponsored day care. Such laws would decrease the stress levels of employees who have responsibility for small children. Thus, such laws would lead to happier, better-adjusted families. Which of the following, if true, would most strengthen the conclusion above?

【选项】People who have responsibility for small children and who work outside the home have higher stress levels than those who do not.