What are articulated vehicles?

Answer: B — Trucks consisting of a tractor and trailers

Articulated vehicles refer to trucks that consist of a tractor and one or more trailers connected by a flexible joint, allowing them to negotiate turns more easily than rigid vehicles. This design enhances maneuverability while enabling the transport of larger quantities of goods. The tractor, which houses the engine and driver's cabin, provides the power, while the trailers are designed to carry the cargo. In the context of this question, the definition of articulated vehicles is linked directly to their structure and functionality. Unlike single unit trucks that do not have trailers, articulated vehicles capitalize on both a power unit and trailer(s), making them a common choice for heavy-duty transport. Other vehicle types, such as small delivery vans or motorcycles with trailers, do not fit the articulated design principles, which are essential for their operation on various road conditions.