Which of the following are common physical changes associated with aging?

The correct choice highlights a range of physical changes that individuals commonly experience as they age. As people grow older, they typically undergo various transformations that affect multiple aspects of their bodies. These changes include alterations in body composition, such as a reduction in muscle mass and an increase in body fat. Skin elasticity decreases, leading to wrinkles and sagging. Hair often thins or turns gray, and nails may become more brittle. Additionally, height can decrease due to changes in spinal structure and joint health, while weight may vary based on lifestyle and metabolic changes.

This answer encompasses a holistic view of the aging process, addressing multiple dimensions of physical changes rather than focusing on just one factor or an incomplete set of changes. Understanding these various aspects helps in recognizing the complexity of aging and its impact on health and well-being.