1
What rule should you use to maintain a safe following distance behind the vehicle ahead of you?
- A.the two-second rule.
- B.the one-second rule.
- C.the five-second rule.
- D.the four-second rule.✓
Why: To maintain a safe following distance behind the vehicle ahead, the DMV recommends using the four-second rule. This provides adequate time to react and stop safely, as stated in the official manual.