What should drivers expect from a rectangular-shaped regulatory sign?

The correct answer is that a rectangular-shaped regulatory sign provides information about special laws or regulations. Regulatory signs are designed to inform drivers of traffic laws and regulations that must be followed, such as speed limits, parking restrictions, and other important rules for safe driving. The rectangular shape is commonly used to capture attention and convey critical information that drivers need to adhere to while on the road.

While warning signs, which typically have a different shape such as diamond, alert drivers to changing conditions or potential hazards ahead, the rectangular signs are specifically focused on conveying commands and regulations enforcing safe driving practices. This distinction is crucial for understanding the purpose behind different traffic signs.

Other options may describe different types of signs or intentions that do not align with the rectangular shape's purpose, indicating specific laws and required actions for drivers to follow.