In the context of coronary heart disease (CHD), which of the following statements is true about women?
a. They are protected at young ages against CHD due to their lower levels of HDL cholesterol.
b. They are less likely to die from a first heart attack than men.
c. They develop CHD on an average of about 15 years earlier than do men.
d. They experience an increased risk of CHD after menopause.
