This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'A rabbit is injected for the first time with ova-albumin. The antibodies generated in this response would be of which class? \nSelect and explain. \nA. IgG, B. IgM, C. IgD, D. IgE', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Primary immune response: The response that occurs after a harmful antigen has beenencountered for the first time. In this IgM are produced.Secondary immune response: Is a much quicker and more effective response that occurs after a previously encountered antigen reappears. In this IgG are produced.', 'role': 'assistant'}]