In the situation shown in the photograph, is the truck driver required to pull over to the hard shoulder to make it easier for other vehicles to overtake?

A)Yes, when the truck is travelling at less than 70 km/h.
B)Yes, when the truck is a heavy vehicle.
C)As a general rule, no.Correct
The driver of any vehicle being overtaken must allow and facilitate the overtaking manoeuvre.
To that end, as soon as they notice that another vehicle following them intends to overtake, they must keep to the right edge of the carriageway, without encroaching on walkways, pavements, platforms, hard shoulders, lanes or areas excluded or reserved for the traffic of other vehicles or users, in order to leave sufficient space to be passed comfortably.
Drivers of heavy vehicles, oversized vehicles or those required to observe a specific speed limit must slow down or pull over to the hard shoulder as soon as possible, if practicable, to give way to those following them when the density of oncoming traffic, the insufficient width of the carriageway, its profile or condition do not allow them to be overtaken easily and without danger. The road shown in the image does not meet these conditions, so the truck driver will not be required to pull over to the hard shoulder.