Cortisol : a. hormone produced by the adrenal cortex
b. somatotropin
c. pancreatic hormone that regulates glucose metabolism
d. hormone produced by the adrenal medulla
e. hormone from the pineal gland

 D

It’s your body’s main stress hormone. It works with certain parts of your brain to control your mood, motivation, and fear.  Your adrenal glands -- triangle-shaped organs at the top of your kidneys -- make cortisol.  It’s best known for helping fuel your body’s “fight-or-flight” instincts

answer; training;

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.