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': 'Left ventricular systole corresponds \nSelect and explain. \nA. ST segment in ECG, B. Right ventricular diastole, C. P wave in ECG, D. Atrial diastole', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Left ventricular systole corresponds to atrial diastole Ref: guyton and hall textbook of medical physiology 12 edition page number:199,200,201', 'role': 'assistant'}]