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': 'Vaccine contrainidicated in pregnancy is \nSelect and explain. \nA. Tuberculin, B. Typhoid, C. Influenza, D. HBV', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Live vaccines MMR BCG Yellow fever contraindicated in pregnancy and radiation therapy (refer pgno:119 park 23rd edition)', 'role': 'assistant'}]