This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Social & Preventive Medicine
[{'content': 'Mission Indradhanush is for \nSelect and explain. \nA. non communicable disease, B. universal immunization, C. Family planning, D. safe water and sanitization', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ref : park 21st ed', 'role': 'assistant'}]