Current research on coronary heart disease indicates that

A) there is a shortage of information about women's symptoms.
B) women are less likely to be referred to a cardiac rehabilitation program than are men.
C) women receive very little information on heart disease.
D) there is a shortage of information about women's symptoms, and women are less likely to be referred to a cardiac rehabilitation program than are men.

Current research on coronary heart disease indicates that there is a shortage of information about women's symptoms, and women are less likely to be referred to a cardiac rehabilitation program than are men. Therefore, the correct answer is D. Options A and C both mention the shortage of information, but they do not address the issue of gender disparity in referral to cardiac rehabilitation programs. Option B only discusses gender disparity in referral to cardiac rehabilitation programs, but does not mention the issue of information shortage.