This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'Caspase are involved in \nSelect and explain. \nA. Nerve processing, B. Cell signaling, C. Inflammation, D. Apoptosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The activation of the caspase cascade is the most central step in apoptosis.', 'role': 'assistant'}]