6 The diagram below shows an inclined plane (in red) that movers use to raise heavy objects against the force of gravity and into a truck.

Which of the following is true about the simple machine shown in red?
A.
It reduces the weight of objects being carried into the truck.
B.
It shortens the distance needed to carry objects into the truck.
C.
It reduces the amount of energy needed to carry objects into the truck.
D.
It reduces the size of the force needed to carry objects into the truck.