This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brain , Subject name: Anatomy
Vein of Galen drains into 
Select and explain. 
A. Internal jugular vein, B. External jugular vein, C. Straight sinus, D. Superior sagittal sinus
C: Straight sinus
Answer: C: Straight sinus 
Explanation: The vein of Galen,also known as the great cerebral vein or great vein of Galen is a single median vein.It is formed by union of the two internal cerebral veins.It terminates in the straight sinus.Its tributaries include the basal veins,and veins from the pineal body,the colliculi,the cerebellum,and the adjoining pa of the occipital lobes of the cerebrum. REF.B D Chaurasia's Human Anatomy,Vol 3,Fifth edition,Pg 448