Which of These Employees Is Revealing an Emotional Effect Caused

Which of these employees is revealing an emotional effect caused by stress?

A) Tomas can't concentrate on his project because he is so nervous about what his boss will say.
B) Jenna's stomach has been upset ever since she learned the company plans to lay off 15% of the employees.
C) Micah called in sick for three days in a row after her poor performance review.
D) Jeb starts to sweat profusely whenever he has to speak at the management meeting.