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': 'Stenson duct pierces the following structures :\na. Pharyngobasilar fascia\nb. Superior constrictor muscle\nc. Buccinator\nd. Buccopharyngeal fascia\ne. Masseter \nSelect and explain. \nA. a, b, e, B. b, a, e, C. c, e ,a, D. d, c', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Parotid duct .', 'role': 'assistant'}]