Final answer:
Norepinephrine (D) is the neurotransmitter from the list that is a catecholamine, which also includes dopamine and epinephrine.D) norepinephrine
Step-by-step explanation:
The neurotransmitter that is a catecholamine from the list provided is norepinephrine (D). Catecholamines are neurotransmitters that contain a catechol nucleus and include dopamine, epinephrine, and norepinephrine. Among these, dopamine and norepinephrine are important neurotransmitters in the central nervous system. Norepinephrine is also released by the adrenal medulla as a hormone into the bloodstream. It functions both as a hormone and a neurotransmitter, where it is involved in the body's fight-or-flight response and in regulating functions such as heart rate and blood pressure.