When a Certain Rubber Band Is Stretched a Distance X

Multiple Choice

When a certain rubber band is stretched a distance x, it exerts a restoring force F = ax + bx², where a and b are constants.The work done in stretching this rubber band from x = 0 to x = L is:

A) aL² + bLx³
B) aL + 2bL²
C) a + 2bL
D) bL
E) aL²/2 + bL³/3