This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Physiology
[{'content': 'Absolute refractory period of hea is the gap of time in which \nSelect and explain. \nA. Hea is in diastole, B. Unresponsive to neural stimuli, C. No action potential from another paof hea will reexcite the hea muscle, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Absolute: Is the period of time during which a second action potential ABSOLUTELY cannot be initiated, no matter how large the applied stimulus is. Relative: Is the interval immediately following the Absolute Refractory Period during which initiation of a second action potential is INHIBITED, but not impossible. Ref: guyton and hall textbook of medical physiology 12 edition page number:174,175,176', 'role': 'assistant'}]