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: ENT
[{'content': 'Lymphatic drainage of the oropharynx is mainly through \nSelect and explain. \nA. Superficial cervical lymph nodes, B. Submandibular nodes, C. Jugulodigastric nodes, D. Jugulo-omohyoid nodes', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Lymphatics from oropharynx drain into the upper jugular chain,\xa0particularly the jugulodigastric (tonsillar) node. Some parts drain to the posterior cervical group also. The base of the tongue may drain bilaterally.\nLymphatic drainage of nasopharynx - upper deep cervical nodes.', 'role': 'assistant'}]