This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carcinogenesis, Subject name: Pathology
Anti-apoptotic factor is? 
Select and explain. 
A. Bax, B. Bim, C. Bad, D. Bcl-2
D: Bcl-2
Answer: D: Bcl-2 
Explanation: Ans is 'd' i.e. Bcl-2 Genes/proteins regulating apoptosisProapoptoticAntiapoptotico Apaf-1 (apoptosis activating factor-1)o BCL-2o Cytochrome Co BCL-Xo Bako Mcl-1o Baxo IAPso Bimo FLIPo AIF (apoptosis inducing factor) o P53 gene o Caspases o TNFRI o FAS (CD95) o FADD (Fas associated death domain) o BH3 only proteins (Bim, Bid, Bad) o Smac/DIABLO