This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'Sir Alexander Fleming got Nobel Prix for \nSelect and explain. \nA. Insulin, B. CT scan, C. Pencillin, D. ECG', 'role': 'user'}, {'content': 'Answer: C \nExplanation: List of Nobel Laureates\n\nWillem Einthoven : ECG.\nSir Alexander Fleming : Penicillin.\nPaul. H. Muller : DDT.\nSir Godfrey N.Hounsfield : Human blood groups.\nKarl Landsteiner : Human blood groups.\nPaul Ehrlich : Immunity.\nSir Peter Mansfield : MRI.', 'role': 'assistant'}]