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: Microbiology
[{'content': 'Cell type which lacks HLA is - \nSelect and explain. \nA. Monocyte, B. Thrombocytes, C. Neutrophil, D. Red blood cell', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]