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
Most commonly involved ossicle in CSOM is 
Select and explain. 
A. Malleus, B. Incus, C. Stapes, D. All the above
B: Incus
Answer: B: Incus 
Explanation: Ossicular necrosis is one of the sequale of CSOM. Most commonly, long process of incus gets necrosed. Sometimes, stapes superstructure also gets necrosed. This increases the conductive hearing loss to more than 50 dB Ref: Diseases of ENT by Dhingra 6th edition Pgno : 73