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. Protaglandins', 'role': 'user'}, {'content': 'Answer: C \nExplanation: T helper cells (TH cells) assist other white blood cells in immunologic processes, including maturation of B cells into plasma cells and memory B cells, and activation of cytotoxic T cells and macrophages. These cells are also known as CD4+ T cells because they express the CD4 glycoprotein on their surfaces. Reff: Ananthanarayanan & Panikers textbook of microbiology 9th edition pg: 133', 'role': 'assistant'}]