Answer:
C.Differential
Explanation:
While vehicle is moving in a curve track there there is a difference between the speed of inner and outer wheel of vehicle.The inner wheels move slowly while outer wheels move faster as compare two inner wheels.Because outer wheels have to cover more distance as compare to inner wheels in the sane time limit.
All above process is carried by using a differential .Differential is a speed changer unit and comes under the picture when vehicle is moving in a curve path.
