A Man Who Is Undertaking a Hunger Protest Claims to Have

A man who is undertaking a hunger protest claims to have survived without having food for a period of two months. He claims to have consumed only water to prevent dehydration. In this scenario, what is likely the reason for the man's ability to survive without food?

A) ability of his body to conserve 10% of the adenosine triphosphate produced in glycogenesis
B) breakdown of glucose into pyruvate, which produces adenosine triphosphate
C) increase in the catabolism of lipids and proteins stored in his body
D) metabolism of stored vitamins, which produces nicotinamide adenine dinucleotide phosphate
E) ability of his body to preserve excess glycogen for several months