Identify the change of motion in the following figures.

We can observe the change of motion                                                  

option (a): continuous change in direction of motion take place          

option (b): here also body gain change in direction of motion as it moves along the given path.

Option (c): here body do not get any change of motion because speed and direction are maintained as constant.

Option (d): body is not maintaining the magnitude of velocity as constant so it will continuously change its state of motion.