What is one key way to reduce the risk of atherosclerosis?
a. get regular physician examinations
b. eat enough calories for activity levels
c. gain enough weight to increase bmi
d. stop using tobacco products

i don't think it's a or b,

The right option is; D. Stop using tobacco products

Atherosclerosis is the accumulation of fats, cholesterol and other substances (plaques) which cause the clogging or hardening of blood vessels (arteries) hence, restricting blood flow. Atherosclerosis begins when the endothelium (cells within the arteries that regulate blood flow) is damaged which result in the formation of plaque. This is mainly caused by smoking, high blood pressure or high cholesterol. One key way to reduce the risk of atherosclerosis is to stop using tobacco products (smoking).

starvation is bad because your body needs nutrition and to deprive it of nutrition can cause problems with both health and fitness.

explanation:

it can make weight loss slow down over time, but it won't cause someone to gain weight depsite restricting calories. starvation causes weakness in the senses like thirst.