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: Anatomy
[{'content': 'Node of Rouviere is \nSelect and explain. \nA. Retropharyngeal, B. Pharyngeal, C. Nasopharyngeal, D. Retromolar trigone', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref: Various articles & internet sources\nNode of Rouviere is the most superior of the lateral group of the retropharyngeal lymph nodes. It is found at the base of the skull. They represent one of the first echelon lymphnodes typically involved in nasopharyngeal carcinoma (NPC).', 'role': 'assistant'}]