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
Grommet tube is used in: 
Select and explain. 
A. Secretory otitis media, B. Mucoid otitis media, C. Serous otitis media, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Myringotomy is coupled with grommet tube inseion in: Serous otitis media (also k/a mucoid otitis media/glue ear) Adhesive otitis media Recurrent acute otitis media Meniere's disease