Whenever possible, how should you immobilize a vehicle that has been involved in an accident?

A)With wheel chocks or any element that can serve as such.
B)Disconnecting the battery terminals.
C)Switching off the ignition and applying the handbrake.Correct
# Immobilization of vehicles in accidents
When a vehicle is involved in an accident, the correct way to immobilize it is by **switching off the ignition and applying the handbrake**. This is the most effective and safest measure because it stops the engine from running and prevents the vehicle from moving accidentally. Wheel chocks are complementary but not sufficient as a primary method, and disconnecting the battery is not the appropriate procedure for this situation.