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
Cell type which lacks HLA is - 
Select and explain. 
A. Monocyte, B. Thrombocytes, C. Neutrophil, D. Red blood cell
D: Red blood cell
Answer: D: Red blood cell 
Explanation: None