Look at the mirror views and blind spots in the diagram. What should you do every time you change lanes?
Correct answer: Use your turn signal, check the mirrors, and turn your head toward the blind spot.
Answer options
AUse your turn signal and turn your head, relying on that instead of the mirrors
BUse your turn signal and check the mirrors, relying on them instead of a head check
CUse your turn signal, check the mirrors, and turn your head toward the blind spot Correct
Why
Mirrors cover a lot but not everything; the red zones in the diagram are blind spots that only a quick turn of the head can reveal. A safe lane change therefore uses all three steps, since relying on the mirrors alone or on a head check alone leaves gaps in what you see.
