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: Medicine
[{'content': 'In children atopic dematitis is associated with increase in- \nSelect and explain. \nA. Immunoglobulin A, B. Immunoglobul in E, C. Immunoglobulin G, D. Immunoglobulin M', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]