FLVS Drivers Education Practice Test 2026 - Free Drivers Ed Practice Questions and Study Guide

Yellow signals are a warning to slow down and prepare to stop; for turning traffic, an arrow in yellow indicates you should stop if you can do so safely to avoid a collision when the signal changes. Since the rule described is about stopping to proceed safely, yellow is the best fit. Green means go, red means stop, and blue isn’t used for standard traffic signals in this context, so they don’t match the rule.