This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'CD-95 in apoptosis; the death receptors initiated through \nSelect and explain. \nA. Induces apoptosis when it engaged by fas ligand system, B. Cytochrom C binds to a protein Apoptosis activating (Apaf-1) factor - 1, C. Apoptosis may be initiated by caspase activation, D. Apoptosis mediated through DNA damage', 'role': 'user'}, {'content': 'Answer: A \nExplanation: * The mechanism of apoptosis induced by FAS death receptor is well illustrated by FAS, a death receptor expressed on many cell types.the ligand for FAS is called FAS ligand.Robbins and Cotran pathologic basis of disease South Asia edition', 'role': 'assistant'}]