What color and shape are warning signs generally?

Answer: B — Yellow Diamond

Warning signs are typically designed to alert drivers to potential hazards on the road, and their color and shape are standardized to ensure quick recognition. The yellow diamond shape is universally recognized for warning signs, as the bright yellow color enhances visibility and draws attention to the warning. The diamond shape is also distinctive, making it easily identifiable amid other road signs, which helps drivers to quickly assess the potential dangers ahead, such as curve warnings, construction zones, or pedestrian crossings. This standardization of color and shape plays a crucial role in promoting road safety by providing clear and immediate communication to drivers.