This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Demography and family planning, Subject name: Social & Preventive Medicine
[{'content': 'On prescription of oral pills to the user, the health worker will ask about the following except \nSelect and explain. \nA. Number of live children, B. Calf tenderness, C. Headache, D. Swelling of the feet', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Women taking oral contraceptives should be advised annual medical examinations Severe pain in calves or thighs, Severe chest pain, Severe headache, Amenorrhoea, Mass in breast and swollen legs should be checked by history and examinations Reference : Park&;s textbook of preventive and social medicine, 23rd edition, pg no:503 <\\p>', 'role': 'assistant'}]