Work (W) is measured in joules using the formula W = f · d, where f is the force in newtons and d is the distance over which the force is applied in meters. If 24 joules of work are needed to move a box a distance of 8 meters, how much force was applied to the box?
A. 16 newtons B. 192 newtons C. 32 newtons D. 3 newtons