In the Western Collaborative Group Study,after Traditional Risk Factors Were

In the Western Collaborative Group Study,after traditional risk factors were controlled for,Type A subjects

A) were twice as likely to develop coronary heart disease (CHD) as Type B subjects.
B) had only a slightly increased risk for developing CHD.
C) were actually less likely to develop CHD than other subjects.
D) were more likely to develop CHD only if they also had a parental history of heart attacks.