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': 'Integrin ligands are all except _____. \nSelect and explain. \nA. CD 54, B. CD 102, C. CD 106, D. CD 34', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]