Final answer:
Family history is a nonmodifiable risk factor for atherosclerotic cardiovascular disease because it is determined by genetics and cannot be changed through personal behavior or medical treatment.
Step-by-step explanation:
A nonmodifiable risk factor for atherosclerotic cardiovascular disease is one that cannot be changed or influenced by personal behavior or choices. Among the options provided, family history is a nonmodifiable risk factor. This is because a person cannot alter their genetic background or change the fact if their parents had cardiovascular disease, which significantly increases their own risk of developing such diseases. Unlike family history, factors such as hypertension, diabetes, and low HDL cholesterol levels can be influenced by medications, lifestyle changes, and other treatments, making them modifiable.