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: Pathology
[{'content': 'Which of the following type of cells are predominantly seen in the myocardial tissue within 48 hours of MI? \nSelect and explain. \nA. Macrophages, B. Neurophils, C. Fibroblasts, D. Monocytes', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 24-48 hours following MI, neutrophilic infiltration is noted predominantly in the border of cardiac myocytes. Large number of neutrophils are seen after 3-5 days. Macrophages are the predominant cell group seen 6 - 10 after MI. Reference: Robbins Pathology, 6th Edition, Page 558', 'role': 'assistant'}]