This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: obstetrics,pediatrics and geriatrics, Subject name: Social & Preventive Medicine
[{'content': 'Fast breathing in less than 2 months old chld the respiratory rate is \nSelect and explain. \nA. 60 breaths per minute, B. 50 breaths per minute, C. 40 breaths per minute, D. 30 breaths per minute', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ref:Park's Text book of Preventive and Social Medicine 25th ed", 'role': 'assistant'}]