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': 'NK cell CD marker is- \nSelect and explain. \nA. 16, B. 60, C. 32, D. 25', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Harshmohan textbook of pathology 7th edition NK cells carries surface molecules of CD2, CD16, CD56. But negative for T cell marker CD 3. .', 'role': 'assistant'}]