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
[{'content': 'All the following are macrophage except— \nSelect and explain. \nA. Monocyte, B. Lymphocyte, C. Kupffer cell, D. Microglia', 'role': 'user'}, {'content': "Answer: B \nExplanation: In humans, the gene encoding the most important histocompatibility molecules are clustered on a small\xa0segment of chromosome 6, the MHC complex or the human leucocyte antigen (HLA) complex in\xa0humans, so named because MHC encoded antigens were initially detected on leucocytes \xa0'-\xa0Robbins7th/203\nMajor Histocompatibility Complex", 'role': 'assistant'}]