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
The connecting vein between facial vein and cavernous sinus is: 
Select and explain. 
A. Superior ophthalmic vein, B. Inferior ophthalmic vein, C. Connecting pterygoid plexus, D. None of the above
A: Superior ophthalmic vein
Answer: A: Superior ophthalmic vein 
Explanation: None