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: Unknown
The epiglottis is derived from- 
Select and explain. 
A. 3rd arch, B. 4th arch, C. 5th arch, D. 6th arch
B: 4th arch
Answer: B: 4th arch 
Explanation: Ans-B