Correct option is A
Work, in physics, is typically defined as the force applied multiplied by the displacement (distance) in the direction of the force: W = F × d
Here, the “load” L can be considered the force (in consistent units, such as newtons if we’re dealing with SI units), while “Ld” is the distance the load moves under that force. Thus, the work done by the load is straightforwardly L × Ld. This formula is central to basic mechanics, where the energy transferred (work) corresponds to how far an object is moved under a certain force.