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: Ophthalmology
Rinne's test negative is seen in: 
Select and explain. 
A. Presbycusis, B. CSOM, C. Labyrinthitis, D. Meniere's disease
B: CSOM
Answer: B: CSOM 
Explanation: Ans. is b i.e. CSOM