This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharynx, Subject name: ENT
Sinus of Morgagni is present in 
Select and explain. 
A. Oropharynx, B. Nasopharynx, C. Hypopharynx, D. Laryngopharynx
B: Nasopharynx
Answer: B: Nasopharynx 
Explanation: It is a space between the base of the skull and upper free border of superior constrictor muscle. Through it enters the 1. Eustachian tube 2. Levator veli palatine 3. Tensor Veli palatine 4. Ascending palatine aery (facial aery). (Ref: Diseases of ENT, PL Dhingra, 7th edition, pg no. 271)