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
In Apoptosis , cytochrome C acts through 
Select and explain. 
A. Apaf1, B. Bcl-2, C. FADD, D. TNF
A: Apaf1
Answer: A: Apaf1 
Explanation: ref, Robbins 8/e p29,9/e p55