What best describes a GDS?

A Global Distribution System (GDS) is best described as a reservation service that provides inventory from multiple suppliers. It serves as a centralized platform that connects travel agents and other booking channels to a variety of services, including hotel rooms, airline seats, car rentals, and other travel-related offerings. This means that through a GDS, agents can access a wide range of options from various providers, enabling them to compare prices, availability, and other essential details across different suppliers in real time.

The ability to connect to multiple sources is crucial for travel agents, as it allows them to offer their clients diverse travel solutions tailored to individual needs. Therefore, the comprehensive nature of a GDS, where it integrates information from various suppliers into one platform, is what makes this choice the best fit for the given question.