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
True regarding nasopharynx are all except 
Select and explain. 
A. Also called as epipharynx, B. Lateral wall has pharyngeal opening of Eustachian tube, C. Fossa of rosenmuller corresponds to the internal carotid aery, D. Passavant's muscle is formed by Stylopharyngeus
D: Passavant's muscle is formed by Stylopharyngeus
Answer: D: Passavant's muscle is formed by Stylopharyngeus 
Explanation: PASSAVANT'S RIDGE It is a mucosal ridge raised by fibres of palatopharyngeus. It encircles the posterior and lateral walls of nasopharyngeal isthmus. Soft palate, during its contraction, makes firm contact with this ridge to cut off nasopharynx from the oropharynx during the deglutition or speech. Ref:- Dhingra; pg num:-240