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: Gynaecology & Obstetrics
[{'content': 'Sarcoma Botyroides is mostly seen in : \nSelect and explain. \nA. Neonates, B. Children under 2 years, C. Adults, D. Postmenopausal', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Children under 2 years', 'role': 'assistant'}]