Which labeled arrow in the figure represents the initial response to low blood glucose levels and increased glucagon release?

Question

Quizplus · Accepted Answer

Arrow B represents the initial response to low blood glucose levels and increased glucagon release, which is the activation of glycogenolysis in the liver to release glucose into the bloodstream. Arrows A, C, and D represent other processes involved in glucose regulation but do not correspond to the initial response to low blood glucose levels and increased glucagon release.

Which Labeled Arrow in the Figure Represents the Initial Response