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
All are true about malignant otitis externa except 
Select and explain. 
A. ESR is used for follow up after treatment, B. Granulation are seen on superior wall of external auditory canal, C. Severe hearing loss is the chief presenting complaint, D. Pseudomonas is the most common cause
C: Severe hearing loss is the chief presenting complaint
Answer: C: Severe hearing loss is the chief presenting complaint 
Explanation: Caused by Pseudomonas aeruginosa. It is an inflammatory condition caused by Pseudomonas infection, usually in the elderly diabetics, or in those on immunosuppressive drugs. There will be excruciating pain and granulations in the ear canal. The conductive type of hearing loss is seen. ( Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 55)