This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
[{'content': 'The following are live attenuated vaccines, except- \nSelect and explain. \nA. BCG, B. Oral typhoid, C. Measles, D. Peussis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: peussis vaccine is usually given combined with tetanus toxoid and diphtheria toxoid.among them peussis is an acellular vaccineref;parks textbook,ed22,pg 154', 'role': 'assistant'}]