What should a driver do if their vehicle breaks down or they are involved in a collision in a tunnel?

1. A.Switch on hazard warning lights and walk to emergency station to call for help.
2. B.Beckon other traffic to overtake.
3. C.Signal all other traffic to stop.
4. D.Switch off all lights and remain in vehicle until help arrives.

This is an official-style question from the Safe and Responsible Driving topic of the Ireland driver theory test (Cat. B). Practise all 807 questions free on iTest.ie — with timed mock exams, automatic mistake tracking and progress sync across devices.