Your mirrors leave the blind spots marked in red in the picture. Which routine is correct for a lane change?
Correct answer: Signaling, checking the mirrors, and looking over your shoulder.
Answer options
ASignaling, checking the mirrors, and looking over your shoulder Correct
BSignaling and checking the mirrors, without a shoulder check
CSignaling and looking over your shoulder, without the mirrors
Why
Mirrors show a lot, but not the red blind-spot zones beside the car, so a shoulder check is the only way to be sure no vehicle is hiding there. Skipping either the mirrors or the shoulder check leaves part of the area around you unchecked.