Which portion of the autonomic nervous system is most active when energy stores of the body are being expended?

A) parasympathetic
B) central
C) peripheral
D) sympathetic

Autonomic Nervous System

A part of the peripheral nervous system responsible for regulating involuntary body functions, like heartbeat, blood flow, breathing, and digestion.

Energy Stores

The various forms in which energy can be kept or held, including chemical, mechanical, thermal, and nuclear, among others, within a physical system.