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: Pharmacology
[{'content': 'Cyclosporine acts on - \nSelect and explain. \nA. CD8 cells, B. CD4 cells, C. B-Lymphocytes, D. T-Lymphocytes', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., CD4 cells", 'role': 'assistant'}]