Stressor is a(n) select one:
a. exercise program that increases one's ability to handle normal stress.
b. hormone released by the adrenal glands during periods of stress.
c. lower back muscle that frequently produces a feeling of physical tension.
d. environmental event that threatens or challenges us.

Respuesta :

The correct answer is d. environmental event that threatens or challenges us.

A stressor is any event that causes stress to an organism such as biological agent (bacteria or virus) or environmental stimulus (changes in temperature). It can also be social (family problems), workplace (problems at work) or daily (some challenge).