Correct answer: B. Reduce speed.
Drivers should always drive at a speed which is safe. In particular, when changing direction, such as entering a roundabout. If driving a tractor with a trailer, extra care should be taken due to their instability.
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.
Practise the full question bank free →