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
MHC II are presented by - 
Select and explain. 
A. Macrophage, B. Dendritic cells, C. Lymphocytes, D. All
D: All
Answer: D: All 
Explanation: Ans. is 'a' i.e., Macrophage, 'b' i.e., Dendritic cells, 'c'i.e. Lymphocyte