Correct answer: D. A fault in the brake fluid system.
If the brake pedal feels soft or spongy when pressed, it could indicate that the brake fluid level is low and there is a fault in the system. Each time a driver sets out on a journey, they should test the brakes. If a fault is detected, have it checked by a competent person. Drivers should check brake fluid levels regularly.
This is an official-style question from the Control of Vehicle topic of the Ireland driver theory test (Cat. B). Practise all 804 questions free on iTest.ie — with timed mock exams, automatic mistake tracking and progress sync across devices.
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