A 55-year-old male presents to the clinic with acute chest pain radiating to his left arm and shortness of breath. He has a history of hypertension and smoking. An ECG is performed and shows the following findings: ST-segment elevation in leads II, III, and aVF. What is the most likely diagnosis based on these ECG findings?
A. Anterior myocardial infarction
B. Inferior myocardial infarction
C. Lateral myocardial infarction
D. Pericarditis