Review Question - QID 214566

A 23-year-old man recently moved to the United States and is presenting to his primary care physician for a first time appointment. The patient has never seen a doctor before and does not take any medications. His temperature is 98.1°F (36.7°C), blood pressure is 132/81 mmHg, pulse is 92/min, respirations are 18/min, and oxygen saturation is 98% on room air. Physical exam reveals bibasilar crackles, jugular venous distension, a holosystolic murmur heard at the left lower sternal border, and lower extremity pitting edema. An ECG is performed with notable findings as seen in Figure A. Which of the following is the most likely diagnosis?