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
Embryonic period is upto: 
Select and explain. 
A. 8 weeks, B. 10 weeks, C. 12 weeks, D. 6 weeks
A: 8 weeks
Answer: A: 8 weeks 
Explanation: 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