This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Medicine
The given ECG shows 
Select and explain. 
A. Hypertrophic cardiomyopathy, B. Pulmonary embolism, C. Pericardial effusion, D. Anterior wall MI
B: Pulmonary embolism
Answer: B: Pulmonary embolism 
Explanation: Ans. B. Pulmonary embolism* The given ECG shows changes corresponding with pulmonary embolism.* Changes are- Sinus tachycardia- S1Q3T3 pattern (T-wave inversion in III)- Incomplete RBBB- Right precordial T-wave inversions* Consistent with acute RV overload in a patient with pulmonary emboli