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': 'National deworming day is observed on \nSelect and explain. \nA. 8 th August, B. 10 th June, C. 5th February, D. 24th March', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ref:Park's textbook of Preventive and Social Medicine 25 th Ed", 'role': 'assistant'}]