Which of the following responses is created by the sympathetic nervous system, which is active during the fight-or-flight response? a) Stomach slows digestion. b) Heart rate slows. c) Lungs constrict bronchi. d) Pupils constrict.

The correct answer will be option-A

Explanation:

The sympathetic nervous system is a type of the autonomic nervous system which mediates the homeostasis and stress response.

During stress condition, it initiates the hormonal response called fight or flight response by secreting acetylcholine from the adrenal medulla which stimulates the secretion of the epinephrine and norepinephrine.

This hormone produces an observable response like increase in the heart rate, widening of the bronchial passages, constriction of the blood vessels, pupillary dilation, perspiration and decreases motility of the large intestine.

Thus, option-A is the correct answer.