Of the following types of molecules,which can function as both neurotransmitters and hormones?

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Catecholamines, such as dopamine, norepinephrine, and epinephrine, can function as neurotransmitters in the central and peripheral nervous systems, as well as hormones when released from the adrenal glands into the bloodstream. Glucocorticoids (A) are a type of steroid hormone, but they are not neurotransmitters. Second messengers (B) are molecules that relay signals from extracellular messengers (like hormones or neurotransmitters) to intracellular targets, but they are not neurotransmitters or hormones themselves. Adipocytes (D) are cells that store fat and release hormones like leptin, but they are not neurotransmitters or hormones.

Of the Following Types of Molecules,which Can Function as Both