You park your vehicle on a downhill slope. Which gear should you leave it in?

You park your vehicle on a downhill slope. Which gear should you leave it in?
A)None, the handbrake only.
B)First gear.
C)Reverse gear.Correct
In a vehicle fitted with a gearbox, in addition to leaving the parking brake applied, the driver must leave reverse gear engaged on downhill slopes and 1st gear on uphill slopes.