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------------------------------------------------ Which sign shape indicates a work zone?

a) Rectangular
b) Diamond
c) Octagonal
d) Pentagon

Work zones are indicated by diamond-shaped signs, which alert drivers to construction or changes in traffic patterns, unlike other shapes that serve different regulatory purposes. The answer to the question is b) Diamond.

Explanation:

In the context of traffic signs and safety, work zones on the road are typically indicated by diamond-shaped signs. These signs are used to warn drivers of upcoming construction zones, road work, or any temporary changes in traffic patterns. Such signs are crucial for maintaining safety and ensuring that drivers are aware of reduced speed limits or detours due to work being performed on the roadway.

Therefore, the answer to the question is b) Diamond. Rectangular signs are generally used for regulatory information or directions, octagonal signs are reserved for stop signs, and pentagon signs indicate school zones.