Why Does Carbohydrate Feeding During Exercise Attenuate Some Aspects of Exercise-Induced

Why does carbohydrate feeding during exercise attenuate some aspects of exercise-induced immunodepression?

A) Because it restores glycogen, which is an important fuel for leukocytes
B) Because it maintains blood glucose and reduces stress-hormone secretion
C) Because it increases glucose availability for the process of phagocytosis
D) Because glucose acts as an antimicrobial agent
E) Because antigen presentation is inhibited by elevated levels of glucose