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
[{'content': 'Which of the following structures passes through sinus of morgagni -a) Ascending palatine arteryb) Levator palatini muscle c) Auditory tubed) Pterygoid nervee) Sphenopalatine nerve \nSelect and explain. \nA. abc, B. bc, C. acd, D. bcd', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]