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
[{'content': 'A patient of CSOM with cholesteatoma present with acute onset of veigo. Treatment is: \nSelect and explain. \nA. Immediate exploration, B. Antibiotics + steroids, C. Labyrinthine sedatives + antibiotics, D. Labyrinthine sedatives only', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A CSOM with cholesteatoma is the most common cause of labyrinthus, presents with transient veigo often induced by pressure on tragus, cleaning the ear or while performing val salva monoeuure * Coical mastoidectomy (in acute mastoiditis) or modified radical mastoidectomy (in chronic middle ear infection or cholesteatoma) will often be required to treat source of infection', 'role': 'assistant'}]