The right answer is glucose.
The reaction of the metabolism of glocose is as follows:
glucose + 2 NAD + + 2 Pi + 2 ADP → 2 pyruvate + 2 NADH + 2 ATP + 2 H + + 2 H2O + heat.
Each molecule of glucose is completely oxidized by cellular respiration, ie it will lose its electrons that will be recovered by NAD +
Each molecule of glucose is capable of producing 38 molecules of ATP after its complete oxidation: 2 ATP from glycolysis, 2 ATP from the Krebs cycle, and 34 ATP from the respiratory chain.
