Explanation

The weight of an object is the gravitational force acting on it (mg); in practice it is measured as the force the body exerts on its support — for example, the force it exerts on the ground or on a weighing scale, equal to the normal contact force at rest. The net or total forces describe resultant dynamics, and the inertial property describes mass, not weight. Among the options, weight is due to the force the object exerts on the ground.