After a woman is startled awake in the middle of the night by a loud noise, she soon realizes that the noise she heard was the closet rod breaking from the weight of her winter coats. once she knows that, she begins to calm down and her heart stops racing. clearly her has now been activated.

Clearly her "parasympathetic nervous system" has now been activated.

The parasympathetic sensory system (PNS) controls homeostasis and the body very still and is in charge of the body's "rest and process" work. The sympathetic nervous system (SNS) controls the body's reactions to an apparent risk and is in charge of the "fight or flight" reaction. The PNS and SNS are a piece of the ANS, or autonomic nervous system which is in charge of the automatic elements of the human body.  

i’m   sure probably just geuss and see which one you can get right, i’m pretty sure it is the combination of goods and services

answer; limbic system;