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': 'False about IgM Antibody \nSelect and explain. \nA. Has highest molecular weight, B. Has Highest Sedimentation Co-efficient, C. It is monomeric in nature, D. IgM is responsible for Agglutination', 'role': 'user'}, {'content': 'Answer: C \nExplanation: IgM is pentameric in\xa0structure with 10 valency.', 'role': 'assistant'}]