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 retina is an outgrowth of the - 
Select and explain. 
A. Mesencephalon, B. Diencephalon, C. Telencephalon, D. Pons
B: Diencephalon
Answer: B: Diencephalon 
Explanation: None