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: Anatomy
Which of the following structures passes through sinus of morgagni -a) Ascending palatine arteryb) Levator palatini muscle c) Auditory tubed) Pterygoid nervee) Sphenopalatine nerve 
Select and explain. 
A. abc, B. bc, C. acd, D. bcd
A: abc
Answer: A: abc 
Explanation: None