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
Cytosolic cytochrome C plays an impoant function in: 
Select and explain. 
A. Apoptosis, B. Cell necrosis, C. Electron transpo chain, D. Cell division
A: Apoptosis
Answer: A: Apoptosis 
Explanation: . Apoptosis