As a general rule, on roads with three carriageways, the side ones will be used...
A)In both directions.
B)In one direction, provided traffic is flowing.
C)In one direction, although some lanes may be enabled for the opposite direction.Correct
# Explanation
On roads with three carriageways, the side carriageways are used for one-way traffic to maintain orderly and safe circulation. However, there is flexibility in the regulations that allows one or more lanes of these side carriageways to be enabled for the opposite direction when traffic needs require it, thus adapting to varying traffic conditions.