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
Investigation of choice to demonstrate vesico-ureteric reflex: 
Select and explain. 
A. IVP, B. Ultrasound, C. Contrast MCU, D. Cystoscopy
C: Contrast MCU
Answer: C: Contrast MCU 
Explanation: Ans. Contrast MCU