Correct answer: C. The manufacturer's specifications.
The maximum weight that your vehicle can safely tow is specified by the manufacturer, and is usually set out in the drivers handbook for the vehicle, and in some cases on a plate attached to the vehicle. This is the safe towing limit for the vehicle and you should not exceed it.
This is an official-style question from the Managing Risk 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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