You see a signal person at a road construction site ahead. You should obey his or her instructions:

  1. Only if you see orange cones on the road ahead.
  2. Unless they conflict with existing signs, signals, or laws.
  3. t all times. ✓

Answer: C. t all times.

You should obey the signal person's instructions at all times.

Why this is the answer

The handbook tells drivers in a work zone to obey special signs or instructions from workers, including flaggers. A signal person directing traffic is that kind of worker instruction, so you follow it as you pass through the zone. Cones and drums help guide you, but the passage does not make their presence a condition for obeying the worker. It also gives no exception for instructions that differ from existing signs or signals.

Why the other answers are wrong

Remember it

When you see a flagger or signal person, treat their directions as the active control for that work zone.

Official handbook: California Driver Handbook (DL 600), Section 7: Laws and Rules of the Road, p. 49

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.