This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors of Nose and PNS, Subject name: ENT
[{'content': 'Esthesioneuroblastoma arises from: \nSelect and explain. \nA. Olfactory epithelium, B. Ethmoid sinus, C. Maxillary sinus, D. Sphenoid sinus', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. (a) Olfactory epitheliumRef: Dhingra's ENT 6th edJ 204* Esthesioneuroblastoma usually arise from the olfactory epthelium . It's a rare tumor of any age group .* Presentation of tumor: cherry red, polypoidal spots mass in upper third of nasal cavity. It is a vascular tumor that bleeds profusely on biopsy.", 'role': 'assistant'}]