In Their Research, Dr

In their research, Dr. Grayson and his colleagues discovered there was a link between the number of daily hassles people experienced and psychological distress and physical ailments, such as headaches and backaches. One explanation for this phenomenon is that:

A) while each minor stressor may be relatively unimportant in itself, the effect of daily hassles can be cumulative.
B) even a minor daily hassle produces more stress than a major life event.
C) daily hassles tend to stimulate immune system responses and increase their effectiveness.
D) people who are illness-prone are more likely to experience daily hassles.