This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuroanatomy 1, Subject name: Anatomy
Which pa of the ventricular system contains choroid plexus? 
Select and explain. 
A. Cerebral aqueduct, B. Frontal horn, C. Interventricular foramen, D. Third ventricle
D: Third ventricle
Answer: D: Third ventricle 
Explanation: The third ventricle has a choroid plexus; the frontal horn, and the cerebral aqueduct are all devoid of a choroid plexus; the interventricular foramen has no choroid plexus.