This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
Sclerosing otitis media is diagnosed by 
Select and explain. 
A. Impedence audiometry, B. Pure tone audiometry, C. X-ray, D. Otoscopy
D: Otoscopy
Answer: D: Otoscopy 
Explanation: Otoscope is used to view any of the middle ear pathology like granulations, sclerosis, ossicular chain, adhesions. Ref: Dhingra 7e pg 78.