This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pediatrics, Subject name: Social & Preventive Medicine
[{'content': 'Exclusive breast feeding is upto: \nSelect and explain. \nA. 6 weeks, B. 6 months, C. 9 Months, D. 1 year', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) 6 monthsRef: K. Park 23rd ed. / 508, 530-33 Exclusive breast feeding: 0 to 6month and should be continue upto 2years', 'role': 'assistant'}]