The RN is explaining to an elderly client why the skin folds and sags as part of the normal aging process. What is the correct mechanism for this?

A. Increasing capillary fragility contributes to bruising and bleeding but does not directly cause skin folding or sagging. B. Increased sebaceous and sweat glands may affect skin texture but are not the primary cause of sagging skin. C. Decreased collagen is the primary reason for skin sagging in aging, as collagen provides structure and elasticity to the skin. With age, collagen production decreases, leading to wrinkles and sagging. D. Loss of elasticity is a consequence of reduced collagen and elastin fibers, contributing to skin changes, but decreased collagen is the main cause of the sagging.