This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous System, Subject name: Pediatrics
In a small child diagnosed with H. influenza meningitis. What investigation must to be done before discharging him from the hospital? 
Select and explain. 
A. BERA, B. MRI, C. CT scan, D. X-ray skull
A: BERA
Answer: A: BERA 
Explanation: a. BERA(Ref: Nelson's 20/e p 2936-2948, Ghai 8/e p 563-565)Sensorineural hearing loss is the most common sequelae of bacterial meningitis; So a hearing evaluation should be done before discharge of a child with meningitis, from hospital.