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: Anatomy
[{'content': 'Barr body is found in the following phase of the cell cycle: \nSelect and explain. \nA. Interphase, B. Metaphase, C. GI phase, D. Telophase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Barr body is found in interphase.', 'role': 'assistant'}]