Correct answer: D. It can distort the rear vision of the driver.
When driving in the rain, water droplets can adhere to the exterior mirrors and obscure the driver's view to the side and rear of the vehicle. If the vehicle has heated mirrors, turn them on to clear them. Alternatively, stop periodically to clear them manually.
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 →