A flock of sheep on a road, on which shoulder must it travel?

A flock of sheep on a road, on which shoulder must it travel?
A)On the left-hand shoulder.
B)On the right-hand shoulder.Correct
C)It does not matter, it can travel on the right or the left.
A flock of animals, if there is no livestock route, must travel on the right-hand shoulder. If it had to use the carriageway, it will do so by approaching the right edge of it as closely as possible.