This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Which of the following ECG findings is associated with acute myocardial Infarction \nSelect and explain. \nA. Elevation of S wave, B. Prolonged QT interval, C. Tall T waves with increased amplitude, D. Prolonged PR interval', 'role': 'user'}, {'content': "Answer: C \nExplanation: Answer is C (Tall T waves with increased amplitude) Acute myocardial infarction is associated with 'ST segment' elevation and tall, positive, hyperacute T waves (increased amplitude of T waves). 'When the acute ischemia is transmural, the ST vector usually is shifted in the direction of outer layers (epicardial), producing ST elevation and sometimes in the earliest stages of ischemia, tall, positive so called hyperacute T waves over the ischemic zone'", 'role': 'assistant'}]