This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
[{'content': 'The type of receptors present on T cells are: \nSelect and explain. \nA. IgG, B. IgD, C. CD4, D. Prostaglandins', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., CD4(Ref: Ananthanarayan, 9th/e, p. 133 and 8th/e, p. 128)* Markers present on T cells are CD1, CD3, CD4, CD5 and CD8.", 'role': 'assistant'}]