What should a driver do in the event of a breakdown or incident in a tunnel?

1. A.Switch off the engine and switch on the hazard lights.
2. B.Beckon other traffic to overtake.
3. C.Reverse the vehicle if necessary to make room for overtaking traffic.
4. D.Signal the vehicle behind to stop and ask the driver to summon help at the other end of the tunnel.

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.