What are the three basic kinds of signs used on streets and highways?

The three basic kinds of signs used on streets and highways are regulatory signs, warning signs, and guide signs. Regulatory signs are essential as they inform drivers of specific laws and regulations that must be followed, such as speed limits, stop signs, and yield signs. These signs help in maintaining order on the roads and ensuring safety by clearly communicating the rules that govern vehicle operation.

Warning signs serve to alert drivers to potential hazards or changes in the driving environment. They often indicate things such as sharp turns, pedestrian crossings, or construction zones. These signs are crucial in giving drivers the information they need to navigate safely through potentially dangerous situations.

Guide signs provide directional and mileage information, assisting drivers in finding their way. They may indicate routes, distances to destinations, or points of interest. These signs help enhance navigation and improve overall travel experience by offering necessary information about where to go.

Other options included terms that are either vague, not standard in traffic signage, or combine types of signs that do not represent the primary categories recognized in traffic management. Thus, option B accurately captures the three fundamental types of signs used on roads.