Why should a driver double-check mirror adjustment after a different driver has used the vehicle, rather than assuming the previous setting is still correct?

Pick an answer

1. Mirror settings suited to one driver's seating position and height may not give another driver the same visibility
2. Mirror positions are standardized and never differ between drivers
3. Mirror adjustment is relevant only for the very first driver assigned to a new vehicle, since later drivers are expected to adapt to the existing setting
4. This check is necessary only if the vehicle has been serviced since the last shift

Correct!

Not quite. The correct answer is highlighted.