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
Which of the following cells do not act as antigen presenting cells. ? 
Select and explain. 
A. T-cells, B. B-cells, C. Macrophages, D. Osteoclasts
A: T-cells
Answer: A: T-cells 
Explanation: Ans. is 'a' i.e., T-cellsNote - Osteoclast is a type of macrophage.