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: Microbiology
[{'content': 'MHC II are presented by - \nSelect and explain. \nA. Macrophage, B. Dendritic cells, C. Lymphocytes, D. All', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'a' i.e., Macrophage, 'b' i.e., Dendritic cells, 'c'i.e. Lymphocyte", 'role': 'assistant'}]