The correct answer is (b) slip
The best explanation: An automobile skid is an automobile handling condition where one or more tires are slipping relative to the road, and the overall handling of the vehicle has been affected.
In (automotive) vehicle dynamics, slip is the relative motion between a tire and the road surface it is moving on. This slip can be generated either by the tire’s rotational speed being greater or less than the free-rolling speed, or by the tire’s plane of rotation being at an angle to its direction of motion.
