A Man Moves the 10-G Object Shown in a Vertical

A man moves the 10-g object shown in a vertical plane from position X to position Y along a circular track of radius 20 m. The process takes 0.75 min. The work done by the man is about:

A) 1 J
B) 2 J
C) 4 J
D) 6 J
E) 12 J