When changing lanes on a multilane roadway, you should:

Before changing lanes on a multilane roadway, you should check your mirrors and blind spots. Check your blind spot by looking over your shoulder in the direction that you are moving.

• Honk your horn to let drivers behind you know you might not be able to see them.
• Slow down to shrink your blind spot.
• Look in your mirrors before staring straight ahead.
• None of these.