Correct answer: C. Icy surface.
Lightness in steering indicates a loss of traction. This generally happens when the road surface is icy. Ice provides a harder, smoother surface than rain, or snow so it is difficult to avoid skidding and drivers should allow up to 10 times the normal braking distance in order to stop safely.
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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