Question

noninfectious diseases are caused by a combination of genetic, environmental, and...

contaminated factors

germs

viruses

lifestyle factors

Explanation:

Noninfectious diseases are not caused by pathogens (like germs, viruses) or contaminated factors. They result from genetic, environmental, and lifestyle factors (e.g., diet, exercise, habits). The other options relate to infectious causes.

Answer:

D. Lifestyle Factors