Outside built-up areas where there is no pedestrian zone, where, as a general rule, are pedestrians required to walk?

Outside built-up areas where there is no pedestrian zone, where, as a general rule, are pedestrians required to walk?
A)It does not matter.
B)On their right.
C)On their left.Correct
Pedestrians are required to walk on the pedestrian zone except when it does not exist or is impassable, in which case they may walk on the hard shoulder or on the carriageway.
In areas within built-up areas, if such pedestrian zone does not exist, they must walk on the left or on the right depending on the specific traffic conditions, the road, or its visibility. However, when walking on interurban roads and through-roads, they must do so on their left, unless it is safer to do so on the right.