Answer:
b. gluconeogenesis
Explanation:
The body normally obtain glucose from the carbohydrate sources, but in case of deprivation, the body can still produce glucose. The glucose is necessary to obtain energy for the body, that is the reason why the body produce it in some way or in another.
The gluconeogenesis is the anabolic process in which the body obtain from aminoacids, lactate, piruvate or glicerol the glucose.
This process normally takes place in liver, after the fast period, the body needs glucose for other organs like the brain, so if the body doesn´t have food, the body search different metabolic paths.