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: ENT
[{'content': "Kiesselbach's plexus is situated on the: \nSelect and explain. \nA. Medial wall of the middle ear, B. Lateral wall of the naso-pharynx, C. Anterior inferior region of the nasal septum, D. Laryngeal aspect of epiglottis", 'role': 'user'}, {'content': "Answer: C \nExplanation: Kiesselbach's area (plexus) is a region in the anterior inferior region of the nasal septum where branches of the sphenopalatine, anterior ethmoidal, greater palatine, and facial aeries anastomose. Most nosebleeds (epistaxis) usually occur in this area.", 'role': 'assistant'}]