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
Vesicoureteric reflux is demonstrated by using 
Select and explain. 
A. DMSA, B. DTPA, C. MAG3 - Tc 99, D. I123 iodocholesterol
C: MAG3 - Tc 99
Answer: C: MAG3 - Tc 99 
Explanation: C i.e. MAG3 - Tc99