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
A boy with ASOM undrgoing treatment with penicillin therapy for 7 days now presents with subsidence of pain and persistence of deafness, diagnosis is - 
Select and explain. 
A. Ototoxicity, B. Secretory otitis media, C. Adhesive otitis media, D. Tympanosclerosis
B: Secretory otitis media
Answer: B: Secretory otitis media 
Explanation: Inadequate antibiotic treatment of acute suppurative otitis media may inactivate infection but fail to resolve it completely.
Low grade infection lingers on which acts as a stimulus for the mucosa to secrete more mucus which leads to development of serous/secretory otitis media.