How could towing an overloaded trailer affect a vehicle?

1. A.It could improve the vehicle's fuel consumption.
2. B.It could improve braking ability when going downhill.
3. C.It could improve road holding on bends.
4. D.It could impair the vehicle's steering and braking.

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.