The Featured Study by Pennix and His Colleagues Showed That

The Featured Study by Pennix and his colleagues showed that

A) psychological stress can increase people's susceptibility to heart disease
B) depression contributed to the emergence of cardiac disease in subjects
C) the depression and heart disease association found in other studies is probably the result of an increased frequency of health-impairing habits in stressed subjects
D) depression only increases susceptibility to heart disease in people with Type A personalities