When using a wheelbarrow, which part represents the load?

The load in a wheelbarrow is represented by the items placed in it. This is because the primary function of a wheelbarrow is to transport materials, which can include soil, gravel, or any other type of cargo. The load is what the user is hauling, and it is situated in the body of the wheelbarrow, helping to illustrate basic principles of physics, such as balance and leverage.

Understanding the role of the load is crucial for effective use of the wheelbarrow, as it directly affects stability and maneuverability. The other components, such as the handles and the wheel's axle, serve different purposes—allowing for control and movement—but they do not constitute the load itself. Thus, the correct choice illustrates the fundamental aspect of what a wheelbarrow is designed to carry.