Which measures must the driver of a vehicle take in the event of a forced stop in a place where stopping is prohibited, when there is no possibility of removing the vehicle?

1. 1Only to switch on the hazard warning lights.
2. 2Only to place the emergency-stop sign or a flashing red lantern.
3. 3Perform the action from answer 1 or 2, and in the cases established by the Road Traffic Rules — both actions simultaneously.