C. The glycemic index.
The glycemic index and glycemic load are ways to calculate how food affects blood sugar levels. GI shows how rapidly a food is digested, which in turn shows how quickly or slowly it drives up blood sugar.
Answer: people with a mesomorph body type tend to have a medium frame. They may develop muscles easily and have more muscle than fat on their bodies. Mesomorphs are typically strong and solid, not overweight or underweight. Their bodies may be described as rectangular in shape with an upright posture.
Explanation:
The answer to what you're asking for would be C.