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': 'The lymphatic drainage to central part of the lip is- \nSelect and explain. \nA. Sub mandibular node, B. Sub mental nodes, C. Deep cervical nodes, D. Jugulodiagastric nodes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Lower area, including central part of lower lip and the chin, drains into submental nodes.', 'role': 'assistant'}]