Answer:
The correct option is: sympathetic nervous system
Explanation:
The sympathetic nervous system is a division of the autonomic nervous system of the human body. This system is responsible for controlling the fight or flight response of the body.
The sympathetic nervous system is responsible for increasing the heart rate, high blood pressure, constricting blood vessels, increasing the peristalsis in esophagus, pupillary dilation, perspiration, and piloerection.
Therefore, the physiological responses given in the example can be attributed to the sympathetic nervous system.
