This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Classification and metabolism of amino acids, Subject name: Biochemistry
[{'content': 'GABA (Gamma amino butyric acid) is characteristic of \nSelect and explain. \nA. Post-synaptic excitatory transmitter, B. Post-synaptic inhibitory transmitter, C. Activator of glia-cell function, D. Inhibitor of glia cell function', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Functions of GABA:- One of the major inhibitory neurotransmitters in brain. Regulates the activity of neurons by discouraging the transmission signals It is believed that GABA opens chloride channels & (|||) the permeability of post-synaptic membranes. (|) GABA levels will cause excitation in brain leading to convulsions', 'role': 'assistant'}]