Which type of sign provides directional guidance on the airfield?

Answer: B — Guidance signs

Guidance signs are designed to provide directional information to pilots and vehicle operators on the airfield. These signs help in navigating the layout of the airfield by indicating the direction to various locations, such as runways, taxiways, and other critical areas. They often include arrows and are typically colored in a bright yellow background with black text or symbols, making them easily recognizable. In contrast, warning signs are used to alert drivers to potential hazards, regulatory signs indicate requirements or limitations on airfield activities, and information signs provide supplementary details, such as identifying facilities or services available on the airfield. However, when it comes specifically to providing directional guidance, guidance signs play the essential role. Thus, the choice emphasizing guidance as directional assistance is the most appropriate answer.