What does a sign indicating a pedestrian crossing signify?

Answer: C — Pedestrian crossing.

A sign indicating a pedestrian crossing signifies that drivers should be prepared to yield to pedestrians who may be crossing the road. This type of sign is crucial for ensuring the safety of pedestrians, especially in areas with high foot traffic, such as near schools, shopping centers, or residential neighborhoods. The pedestrian crossing sign alerts drivers to slow down and be vigilant for people who might enter the crosswalk. Recognizing this sign helps cultivate safe driving practices and reduces the risk of accidents involving pedestrians. Such awareness is vital, particularly in urban environments where pedestrians frequently share the road with vehicles.