This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Myocardial Infraction, Subject name: Pathology
[{'content': 'Tigered effect in myocardium is due to - \nSelect and explain. \nA. Malignant change, B. Fat deposition, C. Seen in rheumatic fever, D. Associated with myocarditis', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Fat depositiono Tigered effect is grossly apparent bands of yellowed myocardium (containing fat) alternating with bands of dark red-brown, uninvolved heart.", 'role': 'assistant'}]