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: Unknown
[{'content': 'Immunoglobulin that activates the alternate complement pathway is: \nSelect and explain. \nA. Ig A, B. Ig G, C. Ig M, D. Ig E', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (Refer: Ananthanarayanan and Paniker’s Textbook of Microbiology, 8th edition, pg no: 94–96)\n\xa0\nImmunoglobulin nuggets', 'role': 'assistant'}]