Which materials make up a person's body composition?

The correct answer includes all components that contribute to a person's body composition, which encompasses fat, water, and protein.

Body composition is a term used to describe the percentages of different tissues that make up a person's body. Fat is an essential component, providing energy, insulating the body, and protecting vital organs. Water constitutes a significant part of body weight, affecting various physiological functions, including temperature regulation and nutrient transport. Protein is critical for building and repairing tissues, supporting immune function, and serving as a structural component in muscles and organs.

Since all three of these components are integral to how body composition is defined and understood, choosing "all of the above" accurately reflects the comprehensive nature of what constitutes a person's body composition.