This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharyngeal Arches, Subject name: Anatomy
Parafollicular c cells are derived from? 
Select and explain. 
A. Ultimobranchial body, B. Pharyngeal pouch 4, C. Pharyngeal pouch 5, D. Neural crest cells
D: Neural crest cells
Answer: D: Neural crest cells 
Explanation: All option are true but Neural crest cells is better answer > Ultimobranchial body > Pharyngeal pouch 4 > Pharyngeal pouch 5