Which type of road sign indicates caution and hazards ahead, and what is a typical shape?

• A. Regulatory signs are triangular and require you to stop.
• B. Guidance signs are circular and indicate speed limits.
• C. Warning signs are diamond-shaped and alert you to upcoming conditions such as curves, dips, or intersections.
• D. Informational signs are octagonal and show directions.

Answer: (C)

The key idea here is recognizing warning signs, which are meant to alert you to hazards ahead. Warning signs indicate conditions like curves, dips, intersections, or other surprises on the road, so you know to slow down and proceed with caution. Their typical shape is diamond-shaped, which helps them stand out and signals drivers to pay attention to the specific upcoming condition shown on the sign.

The other descriptions don’t fit because regulatory signs control required actions (they’re not all triangular, and the famous stop sign is actually octagonal), guidance signs provide directions and routes (usually rectangular, not circular), and informational signs show services or directions (also usually rectangular or square, not octagonal).