This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'CD8 cell - \nSelect and explain. \nA. T-cells, B. B-cells, C. Null cells, D. Macrophages', 'role': 'user'}, {'content': 'Answer: A \nExplanation: CD 8 cells are another name for cytotoxic T cells. Basic Pathology, Robbins. Page no.:101', 'role': 'assistant'}]