Question

in what way can family most influence the development of chronic disease?
a. uv exposure
b. outdoor air quality
c. allergen exposure
d. secondhand smoke exposure

Explanation:

Family members' smoking habits can directly affect others through second - hand smoke exposure, which is a significant risk factor for chronic diseases like lung cancer and heart disease. UV exposure is related to sun exposure, outdoor air quality is an environmental factor not directly controlled by family, and allergen exposure can be from various sources not as directly family - influenced as second - hand smoke.

Answer:

D. Secondhand smoke exposure