The answer is A. Sugar. Sugar is being broken down by the body to release energy. Sugar is the main source of energy of our body.
Where do sugar come from?
Sugar comes from carbohydrate-containing foods. Our body breaks down this carbohydrates to form energy from sugar. They are usually found on the following:
After being broken down into sugar in the intestines it gets absorbed into the body. Insulin is the one incharce for the trasnfer of sugar to the bloodstream. This insulin is from or is secreted by the pancreas. This aids for the absorption or transfer of sugar.