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