All carbohydrates are converted to glucose the fuel for the body’s cells

Most of the carbohydrates in the foods you eat are digested and broken down into glucose before entering the bloodstream. Glucose in the blood is taken up into your body's cells and used to produce a fuel molecule called adenosine triphosphate (ATP) through a series of complex processes known as cellular respiration

Explanation:

c. flammable gases, patient lying in standing water, combustible liquids near the victim