At what speed may a novice driver travel on this conventional road?

At what speed may a novice driver travel on this conventional road?
A)80 km/h, plus 20 km/h for overtaking.
B)90 km/h.Correct
C)100 km/h.
The maximum speed for a novice driver is the same as for the rest of the drivers, although they must carry a plate with the letter L in a visible place.
The maximum speed allowed on conventional roads is 90 km/h.