A school zone warning sign is in the shape of a _____.

Answer: C — Pentagon

The school zone warning sign is in the shape of a pentagon. This design is specifically used to alert drivers to the presence of a school zone. The pentagon shape is easily recognizable and is associated with school-related cautions, ensuring that drivers understand the need to slow down and watch for children near schools. This distinct shape helps to differentiate school zone warnings from other types of signs, such as regulatory signs and warning signs, which may come in different shapes. Knowing the shape of these signs is crucial for drivers to recognize them quickly and respond appropriately while navigating around school areas.