On an interurban road, can a moped overtake an agricultural tractor travelling on the hard shoulder?

On an interurban road, can a moped overtake an agricultural tractor travelling on the hard shoulder?
A)Yes, but only during the day.
B)No, vehicles travelling on the hard shoulder cannot be overtaken.
C)Yes, provided the parallel travel does not exceed 200 metres or 15 seconds.Correct
The driver of any vehicle required to use the hard shoulder, except bicycles, may not overtake another if the duration of the vehicles travelling side by side exceeds 15 seconds or 200 metres of travel.