Robert Post Found That, After an Initial Stressful Event Triggered

Multiple Choice

Robert Post found that, after an initial stressful event triggered a disorder such as depression, increasingly minor stressful events could trigger additional bouts of depression. This reasoning indicates that:

A) some individuals learn how to be depressed.
B) depression can have more than one underlying cause.
C) some individuals become sensitized to stress and its associated physiological states.
D) depression is a very common disorder.