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': 'Tip of tongue drains into - \nSelect and explain. \nA. Occipital lymph node, B. Submental lymph node, C. Deep cervical lymph nodes, D. Tonsillar lymph nodes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tip of the tongue drains into submental nodes, anterior 2/3 drains into submandibular nodes, and posterior 1/3 into jugulodigastric nodes.\nFinally, all lymphatics drain into juguloomohyoid nodes, also known as lymph nodes of the tongue.', 'role': 'assistant'}]