If you park a passenger car with a light trailer on a significant slope, you must...

A)apply the handbrake only.
B)chock the vehicle with any element suitable for that purpose.
C)place wheel chocks or rest the steering wheels against the kerb.Correct
When a vehicle with a maximum authorised mass of more than 3,500 kilograms, a bus, or a combination of vehicles is parked in a location with a significant slope, its driver must leave it properly chocked, either by placing wheel chocks or by resting one of the steering wheels against the kerb.
If we park on a slope in a passenger car, in addition to applying the parking brake, we must:
- Engage the appropriate gear — first gear on an uphill slope, and reverse gear on a downhill slope, or, where applicable, the parking position.
If we park on a slope in a passenger car, in addition to applying the parking brake, we must:
- Engage the appropriate gear — first gear on an uphill slope, and reverse gear on a downhill slope, or, where applicable, the parking position.