Given the Characteristics of Small-Molecule Transmitters and Neuropeptides,we Can Conclude

Multiple Choice

Given the characteristics of small-molecule transmitters and neuropeptides,we can conclude that small-molecule transmitters​

A) are well-suited to roles as neurotransmitters, whereas neuropeptides are well-suited to roles as neuromodulators.
B) ​are well-suited to roles as neuromodulators, whereas neuropeptides are well-suited to roles as neurotransmitters.
C) ​and neuropeptides are equally well-suited to be either neurotransmitters or neuromodulators.
D) and neuropeptides frequently act as neuromodulators and neurohormones, but rarely function as neurotransmitters.