The sat nav must be placed...

The sat nav must be placed...
A)at a comfortable distance so that the driver can operate it while driving.
B)near the passenger seat.
C)at a correct height so as not to have to look away from the road.Correct
The driver of a vehicle is required to maintain their own freedom of movement, the necessary field of vision and constant attention to driving that guarantees their own safety, that of the other occupants of the vehicle and that of other road users.
Therefore, it is best to listen to voice instructions and avoid looking at the screen, placing it at a height that does not obstruct vision or require looking away from the road to consult it.
We must not place it near the airbag as it can be dangerous.