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.
<span>The symptoms stated above are evident in people who
are anorexic. They tend to suffer from factors such as <span>depression, peer and family pressure,
substance abuse, or a family history of weight problems.</span></span>