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 is suspected to have vestibular shwanomma the investigation of choice for its diagnosis is - \nSelect and explain. \nA. Contrast enhanced CT scan, B. Gadolinium enhanced MRI, C. SPECT, D. PET scan', 'role': 'user'}, {'content': 'Answer: B \nExplanation: MRI – MRI with gadolinium contrast is the gold standard for the diagnosis or exclusion of vestibular Schwannoma', 'role': 'assistant'}]