After a Very Loud Noise in Her Backyard Woke Her

Multiple Choice

After a very loud noise in her backyard woke her from a sound sleep, Ursula is lying in bed paralyzed by fear. Her heart is pounding, her face is flushed, and there is a sinking feeling in the pit of her stomach. The nervous system that is responsible for Ursula's body reactions to the noise is called ___________________.

A) autonomic nervous system
B) voluntary nervous system
C) central nervous system
D) somatic nervous system