What is the definition of traction?

Answer: A — The tire that grips the road

Traction is defined as the grip or adhesion of a tire on the road surface. It is crucial for safe driving as it allows the vehicle to accelerate, brake, and corner effectively. Option A correctly defines traction as the tire that grips the road. Option B, energy of motion, is not the definition of traction. Option C, green light that has been there for a while, is irrelevant and does not define traction. Option D, force with which one moving object hits another, is not related to the definition of traction.