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: Pathology
[{'content': 'Which of the following special stains can be used for the diagnosis of rhabdomyosarcoma - \nSelect and explain. \nA. Desmin, B. Cytokeratin, C. Myeloperoxidase, D. Synaptophysin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: . Desmin', 'role': 'assistant'}]