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 is not seen in early phase of myocardial infarction on microscopy ? \nSelect and explain. \nA. Coagulation necrosis, B. Edema, C. Hemorrhage, D. Fibrosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Answer- D. FibrosisFibrosis (scarring) occurs late.Coagulation necrosis, hemorrhage and edema are seen within 4-12 hours.', 'role': 'assistant'}]