1
When changing lanes, which of these actions is considered optional?

- A.Using your hand signals or turn signals
- B.Checking your mirrors
- C.Looking over your shoulder
- D.None of the above✓
Why: All three actions—signaling, checking mirrors, and looking over your shoulder—are mandatory safety requirements for changing lanes. Skipping any of these steps significantly increases the risk of a collision with a vehicle you might have missed.
