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 the following are macrophage except— 
Select and explain. 
A. Monocyte, B. Lymphocyte, C. Kupffer cell, D. Microglia
B: Lymphocyte
Answer: B: Lymphocyte 
Explanation: In humans, the gene encoding the most important histocompatibility molecules are clustered on a small segment of chromosome 6, the MHC complex or the human leucocyte antigen (HLA) complex in humans, so named because MHC encoded antigens were initially detected on leucocytes  '- Robbins7th/203
Major Histocompatibility Complex