Jack, steve, daniel, and mark are friends. on the basis of their diets and physical activity levels, who is most likely to become a type-2 diabetic later in life?

The one who Loves junk food and hates any kind of physical activity would be the answer.
Type-2 diabetic is caused by the body not properly use existing blood sugar as it should be. This could happen if we put way too much sugar inside our body (which often contained in junk food) or do not do enough physical activity to metabolize it.

Your answer should be c

Hair follicles, blood, etc.