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 an object that moves from x = 1.0 m to x = 6.0 m. (Assume an accuracy of 2 significant figures for the numbers on the graph.)

A) 26 J
B) 29 J
C) 22 J
D) 35 J
E) 27 J