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
Acoustic neuroma of 1 cm diameter, the investigation of choice - 
Select and explain. 
A. CT Scan, B. MRI Scan, C. Plain X-ray skull, D. Air encephalography
B: MRI Scan
Answer: B: MRI Scan 
Explanation: None