Linda has had several family members die from heart disease-related complications. She realizes she is at high risk for cardiovascular disease, and some of this risk is attributable to her genetic makeup. All of the following are genetic variations that may increase heart disease risk EXCEPT:__________.
a) Eating a diet high in saturated and trans fat.
b) Having abnormally high levels of homocysteine.
c) Having elevated blood cholesterol.
d) All of these are genetic variations that may increase the risk of heart disease.