This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Heart, Circulation, and Blood, Subject name: Physiology
[{'content': 'Which part of ventricular action potential corresponds to ST segment in ECG? \nSelect and explain. \nA. Phase 0, B. Phase 1, C. Phase 2, D. Phase 3', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C. Phase 2The phase 2 of ventricular action potential reflects the ST segment.', 'role': 'assistant'}]