If each book in the diagrams has the same mass, which diagram shows the most work done?

— ExhibitC

When an object is being raised against gravity, work is being done. Gravity is the force that must be overcome to lift an object. The amount of work done is determined by how high the object is lifted and the mass of the object. The higher an object is lifted, the more work is done.

If each book in the diagrams has the same mass, which diagram shows the most work done?
A . A
B . B
C . C
D . D
E . E

Answer: E