Which color signs are used to provide route information?

The correct answer is associated with brown signs, which are specifically designed to provide route information related to recreational and scenic destinations. These signs are commonly found near parks, historical sites, and tourist attractions, guiding drivers toward points of interest along their journey.

While other colors of signs, such as blue and green, also convey important information—blue signs typically indicate services and amenities, while green signs provide directional guidance and distance to certain destinations—they do not serve the primary function of highlighting recreational routes. Therefore, brown signs stand out as the color designated for guiding motorists towards recreational areas, making it the most appropriate answer for this question regarding route information.