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: Surgery
Investigation of choice for vesicoureteric reflex 
Select and explain. 
A. USG KUB, B. Micturating cystourethrography, C. CT, D. MRI
B: Micturating cystourethrography
Answer: B: Micturating cystourethrography 
Explanation: MCU is IOC for vesicoureteric reflex.