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': 'The HIV virus binds directly to the surface receptors of CD4 lymphocytes with _____. \nSelect and explain. \nA. Reverse transcriptase, B. Integrase, C. Hemagglutinin, D. Glycoprotein 120', 'role': 'user'}, {'content': 'Answer: D \nExplanation: HIV’s envelope contains two glycoproteins, gp120 and gp41. gp120 binds specifically with CD4 surface receptors.', 'role': 'assistant'}]