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
[{'content': 'In apoptosis initiation: \nSelect and explain. \nA. The death receptors induce apoptosis when they get engaged by fas ligated system, B. Cytochrome C inhibits Apoptosis activating factor -1, C. Apoptosis may be initiated by caspase activation, D. Apoptosis mediated through DNA damage', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The death receptors induce apoptosis when they get engaged by fas ligand system Ref, Robbins 9/e p56.', 'role': 'assistant'}]