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
All are macrophages except- 
Select and explain. 
A. Histocytes, B. Kupffer cells, C. Lymphocytes, D. Osteoclasts
C: Lymphocytes
Answer: C: Lymphocytes 
Explanation: Mononuclear macrophages
o Blood macrophages → Monocytes
o Tissue macrophages → Histocytes
o Lung → Alveolar macrophages
o Brain → Microglia
o Liver → Kupjfer cells
o Bone → Osteoclasts
o Kidney → Mesangial cells