This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acute coronary syndrome, Subject name: Medicine
Bradycardia is a feature of? 
Select and explain. 
A. Inferior wall MI, B. Antro septal, C. Lateral wall MI, D. Posterior wall MI
A: Inferior wall MI
Answer: A: Inferior wall MI 
Explanation: Pathological cause of sinus bradycardia is acute myocardial infarction. Sinus bradycardia is paicularly associated with inferior myocardial infarction as RCA supplies SAN and AVN.