If we are driving on a road where there is a continuous longitudinal line alongside a broken one...

A)it indicates that it is a reversible lane.
B)it cannot be crossed under any circumstances.
C)we must only take into account the line closest to the lane in which we are travelling.Correct
A marking consisting of a continuous longitudinal line alongside a broken one means that drivers must only take into account the line on the side on which they are travelling. When these markings separate different directions of traffic, this provision does not prevent drivers who have completed an overtaking manoeuvre from returning to their normal position on the carriageway.