Final answer:
The question refers to maintaining a 'space cushion' while driving, which means keeping a safe distance from other vehicles to prevent collisions. It is not related to fibrocartilage pads or fluid-filled spaces as described in options a and b.
Step-by-step explanation:
The question appears to focus on the concept of creating or maintaining a space cushion in the context of driver safety. A 'space cushion' is not specifically a fibrocartilage pad nor is it a fluid-filled space as described in options 'a' and 'b'. Rather, in driving terminology, a space cushion refers to the area of empty space around a vehicle that a driver maintains to allow for enough reaction time in case of sudden stops or emergency maneuvers. The idea is to keep a safe distance from other vehicles in all directions, which can help prevent collisions and provide a more defensive driving environment.