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: Radiology
A patient is suspected to have vestibular schwanomma. The investigation of choice for its diagnosis is 
Select and explain. 
A. Gadolinum enhanced MRI, B. Contrast enhanced CT, C. SPECT, D. PET scan
A: Gadolinum enhanced MRI
Answer: A: Gadolinum enhanced MRI 
Explanation: None