What is the characteristic of a wide body aircraft?

A wide body aircraft is defined by its passenger cabin design, which includes two aisles. This characteristic allows for a greater number of seats compared to narrow body aircraft, which typically have only one aisle. The two aisles in a wide body cabin facilitate faster boarding and deplaning, making it more efficient for handling larger passenger volumes, as is common on long-haul flights.

In contrast, other options do not accurately describe a wide body aircraft. For example, a single aisle in the passenger cabin indicates a narrow body aircraft, and while wide body aircraft can be used for short regional flights, they are generally designed for longer distances. They can transport passengers and cargo, but they are not exclusively equipped for cargo transport.