What do yellow traffic signs generally indicate?

Answer: B — Warnings about road conditions or hazards

Yellow traffic signs are primarily used to provide warnings about road conditions or hazards that drivers may encounter. These signs are designed to alert drivers to situations that require caution, such as curves, pedestrian crossings, or construction zones. The color yellow is universally understood to convey a sense of caution and the need to decrease speed or be prepared for unexpected situations on the road. While regulatory signs, speed limit signs, and parking regulations are indicated by other colors like red or blue, yellow specifically focuses on alerting drivers to potential dangers or changes in road conditions. This helps enhance safety by ensuring that drivers are aware of what to anticipate as they navigate the roadways.