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 superior and inferior ophthalmic veins drain into the: \nSelect and explain. \nA. Internal jugular vein, B. Pterygoid plexus, C. Frontal vein, D. Facial vein', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The superior and inferior ophthalmic veins drain into the facial vein and cavernous sinus.', 'role': 'assistant'}]