This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'In myasthenia gravis the neuromuscular junctions contain deposits of \nSelect and explain. \nA. Acetyicholine, B. Acetyicholine Receptor Antigens, C. Acetyicholinesterase, D. Immunoglobulin', 'role': 'user'}, {'content': "Answer: D \nExplanation: Antibodies to the acetylcholine receptor can be demonstrated in the serum of most patients with myasthenia gravis. This immunoglobulinsare deposited at the neuromuscular junction and can be demonstrated immunohistochemically in muscle biopsies. Ref - Harrison's internal medicine 20e pg 3232", 'role': 'assistant'}]