What will be the minimum speed on this road for a passenger car?

A)50 km/h.
B)45 km/h.Correct
C)60 km/h.
The minimum speed on motorways and dual carriageways is 60 km/h. On other roads, it is half of the generic maximum speed assigned to each vehicle category.
Therefore, if on conventional roads the maximum speed is 90 km/h, the minimum will be 45 km/h.
Therefore, if on conventional roads the maximum speed is 90 km/h, the minimum will be 45 km/h.