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': 'Which TLR is present on flagella of bacteria \nSelect and explain. \nA. TLR -1, B. TLR - 3, C. TLR - 5, D. TLR - 7', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Toll like receptor (TLR) - 5 is present in flagellin.', 'role': 'assistant'}]