This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
[{'content': 'The following is an example of a primarily inhibitors amino acid \nSelect and explain. \nA. Glutamate, B. Aspaate, C. Glycine, D. Somatostatin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Glycine is the major inhibitory neurotransmitter in the brainstem and spinal cord, where it paicipates in a variety of motor and sensory functions. Glycine is also present in the forebrain, where it has recently been shown to function as a coagonist at the N-methyl-D-aspaate (NMDA) subtype of glutamate receptor. Ref: guyton and hall textbook of medical physiology 12 edition page number:64,65,66', 'role': 'assistant'}]