During the Fasting Phase,the Body (Excluding the Brain)cannot Use Glucose

Multiple Choice

During the fasting phase,the body (excluding the brain) cannot use glucose as a metabolic fuel because

A) there is none left.
B) it is all stored in neurons.
C) insulin levels are low and insulin is needed for glucose to enter the cells of the body.
D) glycogen is needed for glucose to enter the cells of the body.
E) glucose is needed for insulin to enter the cells of the body.