If you drive in the rain...
A)the braking distance decreases.
B)the reaction distance increases.
C)you must increase the safety distance from the vehicle travelling ahead.Correct
As a general rule, a driver travelling behind another must leave a distance between their vehicle and the one ahead such that, in the event of sudden braking, they can stop their vehicle without colliding with it, taking into account in particular the speed, grip and braking conditions, and meteorological and environmental conditions, such as when driving in rain.
In rain, the braking distance increases by up to 2 times.
The braking distance is the number of metres the vehicle travels from the moment the brakes are applied until it comes to a complete stop.