This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
[{'content': 'Oestrogen causes proliferation of \nSelect and explain. \nA. Intermediate cells, B. Superficial cells, C. Basal cells, D. Both superficial and intermediate cells', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Oestrogen causes proliferation of glycogen containing superficial cells and progesterone causes proliferation of intermediate cells.', 'role': 'assistant'}]