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: Biochemistry
[{'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 is seen in leiomyoma and rhabdomyosarcoma.', 'role': 'assistant'}]