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
Lipid peroxidation of polyunsaturated lipids of subcellular membranes produces ? 
Select and explain. 
A. Lipofuscin, B. Hemosiderin, C. Both of above, D. None of above
A: Lipofuscin
Answer: A: Lipofuscin 
Explanation: Ans. is 'a' i.e., Lipofuscin Lipofuscin is an insoluble pigment, also known as lipochrome or wear-and-tear pigment. Lipofuscin is composed of polymers of lipids and phospholipids in complex with protein, suggesting that it is derived through lipid peroxi- dation of polyunsaturated lipids of subcellular membranes.