This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Microbiology
In myocardial infarction, the infarct acquires hyperemic rim with a yellow center at 
Select and explain. 
A. 1-2 hours, B. 3-7 days, C. 7-14 days, D. 10-20 days
B: 3-7 days
Answer: B: 3-7 days 
Explanation: Findings of infarct at 3 - 7 days: Gross examinationHyperemia borderSoftening yellow-tan center Histopathology (light microscopy)The beginning of the disintegration of dead muscle fibersNecrosis of neutrophilsThe beginning of macrophage removal of dead cells at the border