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
The most sensitive and specific investigation in renal aery hypeension is: 
Select and explain. 
A. Captopril-enhanced renal scan, B. Doppler ultrasound, C. MRI, D. CT scan
C: MRI
Answer: C: MRI 
Explanation: Ans. MRI