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
Which of the following is the most common abnormality in ECG manifestation of pulmonary embolism? 
Select and explain. 
A. T wave inversion VI to V4, B. Sinus bradycardia, C. U wave, D. S1Q3T3 pattern
A: T wave inversion VI to V4
Answer: A: T wave inversion VI to V4 
Explanation: Ans. is 'a' i.e., T wave inversion VI to V4 ECG findings in Pulmonary embolism include* Sinus tachycardia* S1Q3T3 sign: an S wave in lead I, a Q wave in lead III, and an inverted T wave in lead III. This finding is relatively specific but insensitive.* T-wave inversion in leads V1 to V4.* Perhaps the most common abnormality is T-wave inversion in leads V1 to V4.