Research on the Psychological Causes of Depression Has Found That

Research on the psychological causes of depression has found that clinically depressed people:

A) typically have a hopeless attitude towards the world, the future, and themselves.
B) can feel optimistic about managing themselves and their environments during stressful events.
C) tend to take personal responsibility for the good things that happen to them while they tend to dismiss bad things that happen.
D) tend to suffer from specific brain abnormalities.