How will we correctly adjust the left exterior mirror of the vehicle?

A)It will be adjusted so that most of the rear side of the vehicle can be seen.
B)It will be adjusted with the driver seated in normal position so that they can see the roadway and the minimum essential view of the left side of the vehicle, without turning the head.Correct
C)It will be adjusted with the driver seated in normal position so that with a slight movement of the head, but without moving the body, they can see the roadway.
The left exterior mirror of the vehicle will be adjusted with the driver seated and in normal driving position, without moving the head from that position. With the left hand, the mirror will be adjusted until you can see the roadway and the minimum essential view of the side of the vehicle.