If Neurotransmitters Are Messengers and Not Functions, Which of the Following

Multiple Choice

If neurotransmitters are messengers and not functions, which of the following is true?

A) The same neurotransmitter can cause different outcomes depending on when it is deployed"
B) Neurotransmitters affect cognition and behavior only by first affecting neurons"
C) Neurotransmitters will produce different results depending on which receptor cells are effected by the neurotransmitters"
D) All of the above"