What type of sign indicates a freeway interchange?

Answer: C — Freeway interchange sign

A freeway interchange sign specifically indicates the presence of an interchange, which is a location where two or more roadways intersect, typically allowing for easier transitions between highways or conveyances. This sign serves to alert drivers to the upcoming junction, helping them prepare for possible merges, exits, and lane changes, thus enhancing safety by providing crucial information about upcoming roadway configurations. The other choices serve distinct purposes. A yield sign indicates that drivers must yield to oncoming traffic, which does not relate directly to interchanges. A warning sign generally alerts drivers to potential hazards or upcoming road conditions but does not specify a freeway interchange. A speed limit sign, while critical for ensuring safe driving speeds, does not convey information about the interchange itself.