Question: What is a natural part of aging?\nOptions:\n- (A) Smoking\n- (B) apoptosis\n- (C) regeneration\n- (D) illness\n- (E) stimulation\n- (F) cracking\n- (G) Weight\n- (H) firm skin
Let's be accurate as possible and think step-by-step.
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Aging is associated with the death of cells. Apoptosis means cell death. Apoptosis is a natural part of aging.
The answer: (B).
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