Which of the following, if true, would most strengthen the conclusion above? A. Many businesses that provide health insurance for their employees also provide seminars on stress management. B. Many businesses report a significant decrease in absenteeism during periods when employees feel pressured by management. C. There is a marked decrease in the number of complaints presented at college infirmaries during vacation time. D. There is a marked increase in the number of illnesses treated at college infirmaries around the time of examinations. E. Most people report that being in a hospital or an infirmary is a stressful situation.