The vehicle ahead of you has just overtaken you and does not return to the right lane. Is this correct?
A)Yes, since it travels at a higher speed.
B)No, it should travel on the right.Correct
C)Yes, since the right lane is for slow vehicles.
Outside built-up areas, on carriageways with more than one lane reserved for the direction of travel, you must normally travel in the rightmost lane, although you may use the others in that direction when traffic or road circumstances advise it, provided that you do not obstruct the progress of another vehicle behind you.
Therefore, after overtaking, if the vehicle does not want to continue overtaking, it must travel in the right lane.
Therefore, after overtaking, if the vehicle does not want to continue overtaking, it must travel in the right lane.