Correct answer: D. The driver should keep to the left and allow vehicles to overtake if they wish.
Always read the road ahead and be prepared to react to any traffic situation. You should not drive so slowly that your vehicle unnecessarily blocks other road users. Keep as near to the left as is safe to allow other vehicles to pass safely if they wish.
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.
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