Managers Should Be Alert to Key Symptoms of Excessive Stress

Managers should be alert to key symptoms of excessive stress in themselves and their employees. Which of the following is not a key stress symptom?

A) Changes from punctuality to tardiness
B) Changes from diligent work to careless work
C) Changes from a positive attitude to a negative attitude
D) Changes from cooperation to hostility
E) Changes from a brooding personality to a pleasant personality