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': 'Major inhibitory neurotransmitter in nervous system- \nSelect and explain. \nA. Glutamate, B. Aspartate, C. Gamma-amino butyric acid, D. Taurine', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Gamma-amino butyric acid * Gamma-aminobutyric acid (GABA) is the major inhibitory transmitter of CNS. It produces presynaptic (indirect inhibition).* Glycine is also an inhibitory transmitter and is mainly present in spinal cord. It produces direct inhibition.", 'role': 'assistant'}]