This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Obs), Subject name: Gynaecology & Obstetrics
[{'content': 'Corpus luteum supports endometrium in pregnancy till \nSelect and explain. \nA. 6-10 weeks, B. 12-24 weeks, C. 36 weeks, D. 42 weeks', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (A) 6-10 weeks# At 6-8 weeks there is transfer of function of the corpus luteum to the placenta.', 'role': 'assistant'}]