Under what circumstances is a pedestrian allowed to walk on the right side of a conventional road?

Under what circumstances is a pedestrian allowed to walk on the right side of a conventional road?
A)In any situation, since there are no restrictions.
B)Only when there is heavy traffic on the left.
C)If it is easier or safer due to specific circumstances of the road or traffic.Correct
Pedestrians on the road must walk on the left, so that they can see oncoming vehicles head-on. If they walked on the right, vehicles would approach from behind, which would make it difficult to perceive risk in time and take the necessary measures to avoid it. They will only walk on the right if for any circumstance of the road or traffic it is easier or safer.
Those pushing or pulling a two-wheeled cycle or moped, hand carts or similar devices, any group of pedestrians led by a person or forming a procession, and persons travelling in wheelchairs must always walk on their right.
If there is a shoulder, they shall walk on it, and if there is none, they shall walk on the roadway, as close as possible to the edge. If there are several people, they must go one behind the other, in single file.