Any combination of overwork and stress inevitably leads to insomnia. Managers at HiCorp, Inc., all suffer from stress. A majority of the managers—despite their doctors’ warnings—work well over 60 hours per week, whereas the other managers work no more than the normal 40 hours per week. HiCorp gives regular bonuses only to employees who work more than 40 hours per week.
Which of the following conclusions is most strongly supported by the statements above?
a. Managers at HiCorp work under conditions that are more stressful than the conditions under which managers at most other companies work.
b. Most of the employee bonuses given by HiCorp are given to managers.
c. At HiCorp, insomnia is more widespread among managers than among any other group of employees.
d. No manager at HiCorp who works only 40 hours per week suffers from overwork.
e. Most of the managers at HiCorp who receive regular bonuses have insomnia.