What Were the Findings of Matthews' Research into the Connection

What were the findings of Matthews' research into the connection between Type-A personalities and heart disease?

A) No component of Type A behavior predicted death from heart disease.
B) The component of impatience predicted death by heart disease more often in women than in men.
C) Competitiveness increased the risk of death from cardiovascular disease more than other components.
D) Hostility was the sole factor that predicted death from heart disease.