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: Surgery
[{'content': 'Rhabdomyosarcoma with best prognosis depending on site is: \nSelect and explain. \nA. Orbit, B. Bladder, C. Prostrate, D. None of the above', 'role': 'user'}, {'content': "Answer: A \nExplanation: The prognosis for rhabdomyosarcoma is related to the site of origin. Primary sites associated with more orable prognoses include the orbit and nonparameningeal head and neck, paratestis and vagina (nonbladder, nonprostate genitourinary), and the biliary tract. Ref: Schwaz's principle of surgery 9th edition, chapter 39.", 'role': 'assistant'}]