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': 'Hea failure cells are found in - \nSelect and explain. \nA. Myocardium, B. Lungs, C. Liver, D. Spleen', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Lung o Hea failure cells (siderophages) are hemosiderin containing macrophages in alveoli that are seen in left ventricular failure and denote previous episodes of pulmonary edema.", 'role': 'assistant'}]