This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Development period- week 1,2,3,4, Subject name: Anatomy
[{'content': 'Contents of perivitelline space are:- \nSelect and explain. \nA. Polar bodies, B. Deutoplasm, C. Secondary oocyte, D. None of above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cell membrane of secondary oocyte is known as vitelline membrane which is covered by zona pellucida. A perivitelline space appears between vitelline membrane and zona pellucida for the accommodation of polar bodies.', 'role': 'assistant'}]