ANALYZE THE STIMULUS:
Fact 1: overwork + stress = insomnia.
Fact 2: All Managers at HiCorp, Inc., suffer from stress.
Fact 3: 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.
Fact 4: HiCorp gives regular bonuses only to employees who work more than 40 hours per week.
(E) Most of the managers at HiCorp who receive regular bonuses have insomnia.
Correct. All managers at Hicorp suffers from stress. In addition, ONLY managers who overwork (more than 60 hours/week) receive bonuses. These manager suffer from both stress and overwork, thus they have insomnia.
Answer:E