Work: a Graph of the Force on an Object as a Function

Work: A graph of the force on an object as a function of its position is shown in the figure. Determine the amount of work done by this force on the object during a displacement from x = -2.00 m to x = 2.00 m. (Assume an accuracy of 3 significant figures for the numbers on the graph.)

A) -12.0 J
B) -3.00 J
C) -1.00 J
D) 12.0 J
E) 3.00 J