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: Physiology
[{'content': 'Open faced nucleus in a cell signifies \nSelect and explain. \nA. that the cell is resting, B. that the cell is active, C. nothing, D. that the cell is in transition phase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]