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
Which of the following is not a neuroectodermal derivative? 
Select and explain. 
A. Paneth cells, B. Neurons, C. Schwann cells, D. Odontoblasts
A: Paneth cells
Answer: A: Paneth cells 
Explanation: None