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': 'E.coli gets attached to a surface with the help of - \nSelect and explain. \nA. Fucose, B. Concavatin, C. Phytohaemagglutinin, D. Lactin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]