Answer:
B. Wear and tear
Explanation:
You maintain that physical changes in late adulthood are largely related to built-in time limits to the cell reproduction. It's safe to say that you endorse the 'wear and tear theory of aging. Wear and tear is one of several theories of aging it states that body wears out with its use as the age passes. It is a distinct theory as it could be observed in daily life for non-living things too e.g. the car parts break due to extensive use. Same is with body parts and tissues and their components too which wear out by using them again and again.
