This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oncology, Subject name: Surgery
[{'content': 'Sarcoma Botryoides is also known as: \nSelect and explain. \nA. Embryonal rhabdomyosarcoma, B. Alveolar rhabdomyosarcoma, C. Leiomyosarcoma, D. Lipoblastomatosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Sarcoma Botryoides is a special variant of Embryonal rhabdomyosarcoma. Sarcoma botryoides is a variant of embryonal rhabdomyosarcoma that develops in the walls of hollow, mucosal-lined structures, such as the nasopharynx, common bile duct, bladder, and vagina. Where the tumors abut the mucosa of an organ, they form a submucosal zone of hypercellularity called the cambium layer.', 'role': 'assistant'}]