What Statement by a 65-Year-Old Man Who Had a Myocardial

What statement by a 65-year-old man who had a myocardial infarction 6 months ago would indicate a need for further teaching?

A) "I'm enjoying the same sexual activities now as I did before my heart attack."
B) "I'm still pretty cautious, but our sex lives are very satisfactory."
C) "I've been told that I'm at risk for another heart attack if we have sex."
D) "My heart medications have made me impotent, but we've found other methods of sexual expression."