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: Ophthalmology
The lens is derived from - 
Select and explain. 
A. Surface Ectoderm, B. Endoderm, C. Mesoderm, D. Neuroectoderm
A: Surface Ectoderm
Answer: A: Surface Ectoderm 
Explanation: None