Final answer:
Four of the ten leading causes of illness and death are directly associated with nutrition.
Step-by-step explanation:
The correct answer is b. 4.
Of the ten leading causes of illness and death, four of them are directly associated with nutrition. Poor dietary choices and a sedentary lifestyle contribute to obesity-related diseases, such as heart disease, stroke, type 2 diabetes, and certain types of cancer. These diseases are largely preventable through healthy eating habits and regular physical activity.