As a Particle Moves Along the X Axis It Is

As a particle moves along the x axis it is acted by a conservative force. The potential energy is shown below as a function of the coordinate x of the particle. Rank the labeled regions according to the magnitude of the force, least to greatest.

A) AB, BC, CD
B) AB, CD, BC
C) BC, CD, AB
D) BC, AB, CD
E) CD, BC, AB