Answer:
The correct answer is option A.
Explanation:
Genetic variations that may increase the heart disease risk are the all of the options except option a which is behavioral effect that affect the health of heart by blocking coronary arteries.
Eating a diet high in saturated and trans fat that affect coronary arteries blockage caused by deposited fat in the arteries that affect the flow of the blood to heart.
Thus, the correct answer is - option A.