The graph between the displacement x and time t for a particle moving in a straight line is shown in figure. During the interval OA, AB, BC and CD, the acceleration of the particles is

Options

A. `{:(OA,AB,BC,CD),(+,0,+,+):}`
B. `{:(OA,AB,BC,CD),(-,0,+,0):}`
C. `{:(OA,AB,BC,CD),(+,0,-,+):}`
D. `{:(OA,AB,BC,CD),(-,0,-,0):}`

Answer

B