Research on conflict in married individuals has shown that high rates of hostile behaviour during stressful interactions coincide with:

A) increased release of the stress-related neurotransmitter GABA.
B) suppression of the cardiovascular system.
C) elevated epinephrine, norepinephrine and ACTH levels.
D) suppressed blood pressure response.
E) reductions in testosterone.

Epinephrine

A hormone and medication, also known as adrenaline, that increases heart rate, muscle strength, blood pressure, and sugar metabolism, often associated with the body's fight-or-flight response.

Norepinephrine

A neurotransmitter and hormone involved in the body’s fight or flight response, also playing a role in mood regulation and blood pressure control.

ACTH

Adrenocorticotropic Hormone, a hormone produced by the pituitary gland that stimulates the adrenal glands to release cortisol.