Whenever possible, how should a vehicle that has been involved in an accident be immobilized?

Whenever possible, how should a vehicle that has been involved in an accident be immobilized?
A)With chocks or any element that serves as such.
B)By switching off the ignition and applying the handbrake.Correct
C)By disconnecting the battery terminals.
Whenever possible, a vehicle involved in an accident should be immobilized by switching off the ignition and applying the handbrake. This is done to ensure that the vehicle does not move involuntarily, thus avoiding possible additional risks, such as unexpected movements that could cause more damage or endanger other people in the accident area. Switching off the ignition also reduces the risk of fire, as it stops the power supply to the engine and other electrical components.