When is overtaking prohibited in tunnels?

A)When there is more than one lane for each direction.
B)When the tunnel is not lit.
C)When there is only one lane for each direction.Correct
# Overtaking in Tunnels
Overtaking is prohibited in tunnels when there is only a single lane for each direction of travel, as there is not enough space to carry out the manoeuvre safely. On the other hand, if the tunnel has more than one lane per direction, overtaking is allowed following the general traffic rules. Tunnel lighting is not a determining factor to prohibit overtaking.