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: Pathology
MHC class I represented on - 
Select and explain. 
A. All cells, B. All nucleated cells, C. RBCs, D. None
B: All nucleated cells
Answer: B: All nucleated cells 
Explanation: Ans. is 'b' i.e., All nucleated cells o MHC class I is found on the surface of all nucleated cells and platelets.