C. Poorly; his digestive system is not breaking down molecules from food into glucose.
Explanation:
From the available diagram, it can be seen that the man has a high molecule of starch in both his mouth and small intestine. With the molecules of glucose lower in both mouth and small intestine.
These suggest that his digestive system is not breaking down molecules from food into glucose.
Therefore, in an exercise, he is expected to perform poorly.
I believe the answer they are looking for is a 70year old would be covered by medicare as oppose to a 55year old with disablity would be covered by medicaid