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The traffic on the lane reserved for public passenger transport, signalled as such, is permitted to the vehicles that carry out public passenger transport, these having the obligation to drive only on this lane, as long as such a lane is found on the route on which they drive.

Also, on the lane reserved for public passenger transport, signalled as such, the traffic of the motor vehicles with priority traffic regime is also permitted, when they move in intervention actions or in missions that have an emergency character. The other vehicles are prohibited from driving on such lanes.

The correct answer is: A

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OUG* - Article 43

(1) If a road is provided with a lane intended for slow vehicles or public passenger transport, signalled as such, these will drive only on the respective lane.
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Regulation** - Article 104

The vehicles that carry out public passenger transport are driven on the lane reserved for them, if such a lane exists and is signalled as such. On the same lane may also drive the motor vehicles with priority traffic regime when they move in intervention actions or in missions that have an emergency character.

* OUG = GOVERNMENT EMERGENCY ORDINANCE no. 195 of December 12, 2002 updated (Traffic Code)
** Regulation = REGULATION for the implementation of OUG 195/2002 updated (Regulation of the Traffic Code)