This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Growth, Subject name: Pediatrics
[{'content': 'Embryonic period is upto: \nSelect and explain. \nA. 8 weeks, B. 10 weeks, C. 12 weeks, D. 6 weeks', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Embryonic Period Day of feilization ( 14th day post-ovulation) to 8 weeks* intrauterine life Fetal period 9 weeks to Bih Perinatal Period 28 weeks to 7 days of postnatal life', 'role': 'assistant'}]