When overtaking animal-drawn vehicles, the lateral separation...

When overtaking animal-drawn vehicles, the lateral separation...
A)must not be less than 1.5 metres, when the overtaking is carried out outside a built-up area.Correct
B)must be at least 1.5 metres in all cases.
C)must always be proportional to the width and characteristics of the road.
When overtaking pedestrians, animals, two-wheeled vehicles or animal-drawn vehicles, vehicles immobilised on the road or rescue vehicles when they are carrying out rescue and assistance operations outside built-up areas, the manoeuvre must be carried out by occupying part or all of the adjacent lane of the carriageway.
If there is more than one lane in our direction, the adjacent lane must be completely invaded, and a lane change is mandatory when overtaking cycles, mopeds or groups of them.
In any case, the lateral separation shall not be less than 1.50 metres.

When overtaking a vehicle other than the above, or when the overtaking takes place in a built-up area and is not a cycle or moped, a lateral safety margin proportional to the speed and the width and characteristics of the road shall be left.

When overtaking a cycle or moped in a built-up area, we must leave a lateral separation of not less than 1.50 metres, just as we do outside built-up areas.

(Article 85.4 of the General Traffic Regulations and Article 35.4 of the consolidated text of the Law on Traffic, Circulation of Motor Vehicles and Road Safety)