This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Physiological Changes of Pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'During pregnancy, maximum urinary hCG level is reached in: \nSelect and explain. \nA. 30 days, B. 50 days, C. 70 days, D. 90 days', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Placenta stas producing hCG 8 days post feilization hCG values keep on increasing and reach maximum at 10 weeks(60-70 days) After 10 weeks, hCG levels begin to decline and are minimum at 16 weeks. After 16 weeks,hCG value reaches plateau.', 'role': 'assistant'}]