This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
Nerve supply to stylohyoid is from? 
Select and explain. 
A. 1st arch, B. 2nd arch, C. 3rd arch, D. 4th arch
B: 2nd arch
Answer: B: 2nd arch 
Explanation: The stylohyoid is supplied by the facial nerve, which is the nerve of the second pharyngeal arch. Ref: BD Chaurasia's HUMAN ANATOMY, Volume 3, 4th edition.