Question

fitness walking reduces the risk of which disease?
pertussis
polio
diabetes
malaria

Explanation:

Fitness walking is a form of physical - activity. Regular physical activity can improve insulin sensitivity and glucose metabolism, reducing the risk of diabetes. Pertussis is a respiratory infection prevented by vaccination, polio is a viral disease prevented by vaccination, and malaria is a mosquito - borne disease prevented by measures like mosquito control and prophylaxis.

Answer:

C. diabetes