Correct answer: D. By reducing speed.
As a driver you can do less damage to the environment if you drive smoothly and avoid harsh acceleration and braking. Vehicles travelling at 110 km/h use up to 30% more fuel than those travelling at 80 km/h. However, you should not drive so slow as to inconvenience other road users.
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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