Basically, what can the driver observe by looking through the rearview mirrors?

A)What is happening inside and in front of the vehicle.
B)What is happening behind the vehicle.Correct
C)What is happening in the blind spots.
When driving, it is just as important to see ahead and to both sides as it is to see behind. Without rearview mirrors it would be impossible to drive correctly and safely, since we would not have the necessary and sufficient information to do so. This is achieved with the rearview mirrors that allow the driver to see behind and to the sides of the vehicle.