This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
All except one are inhibitory neurotransmitters 
Select and explain. 
A. Acetylcholine, B. Glutamate, C. Norepinephrine, D. Glycine
B: Glutamate
Answer: B: Glutamate 
Explanation: major inhibitory neurotransmitters include serotoninand gamma-aminobutyric acid(GABA). Some neurotransmitters, such as acetylcholine and dopamine, can create both excitatory and inhibitory effects depending upon the type of receptors that are present.