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: Medicine
Accelerated idlioventricular rhythm (AIVR) is most characteristically seen in? 
Select and explain. 
A. AV nodal block, B. Myocardial reperfusion, C. Metabolic derangement, D. Digitalis therapy
B: Myocardial reperfusion
Answer: B: Myocardial reperfusion 
Explanation: None