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
A 57-year-old woman presents to the hospital with a 2-hour history of retrosternal chest pain and dyspnea. Her electrocardiogram (ECG) reveals an acute myocardial infarction pattern. Which of the following ECG patterns is consistent with that interpretation? 
Select and explain. 
A. tall P waves, B. prominent U waves, C. small QRS complex, D. elevated ST segments
D: elevated ST segments
Answer: D: elevated ST segments 
Explanation: Early ischemic changes are tall, peaked T waves that then develop into inverted T waves. Elevated ST segments and Q waves also occur early.