This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neck, Subject name: Surgery
[{'content': 'Level V cervical nodes includes: \nSelect and explain. \nA. Upper jugular nodes, B. Middle jugular nodes, C. Lower jugular nodes, D. Posterior triangle nodes', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Level V cervical nodes includes posterior triangle nodes. CERVICAL LYMPH NODES Level Lymph Node IA SubmentalQ IB SubmandibularQ II UpperQ jugular III MiddleQ jugular IV LowerQ jugular V Posterior triangularQ VI Anterior compamental or centralQ VII Superior mediastinalQ', 'role': 'assistant'}]