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
Brown atrophy is due to accumulation of - 
Select and explain. 
A. Melanin, B. Hemosiderin, C. Hematin, D. Lipofuscin
D: Lipofuscin
Answer: D: Lipofuscin 
Explanation: Ans. is `d' i.e. Lipofuscin Deposition of lipofuscin in the hea is referred as brown atrophy.