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
Conducting hearing loss with intact tympanic membrane ? 
Select and explain. 
A. Presbycausis, B. Meniere's disease, C. Glue ear, D. Acoustic neuroma
C: Glue ear
Answer: C: Glue ear 
Explanation: Ans. is 'c' i.e., Glue ear Among the given options, only glue ear (serous otitis media) is a cause of conductive deafness.