This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
Brown atrophy is due to 
Select and explain. 
A. Fatty necrosis, B. Lipofuscin, C. Haemosiderin, D. Ceruloplasmin
B: Lipofuscin
Answer: B: Lipofuscin 
Explanation: Ref, Robbins 8/e p10,532,7/e10,9/ep64