"The sympathetic branch of the autonomic nervous system control

A) Bodily changes in response to emergency or stressful events
B) Mechanisms of tolerance and dependence
C) Voluntary reaction of skeletal muscles
D) The midbrain and the hindbrain"

A bodily changes in response to emergency or stressful events

Explanation:

The sympathetic nervous system is activated during emergencies -- or what you perceive or interpret to be emergencies.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.