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: Radiology
[{'content': 'Most radiosensitive cells are \nSelect and explain. \nA. Vegetative intermitotic cells, B. Differential intermitotic cells, C. Reverting post mitotic cells, D. Fixed post mitotic cells', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]