What characterizes a personal watercraft?

A personal watercraft is characterized as a small vessel that uses an inboard jet drive. This type of propulsion system allows the craft to move through the water without traditional propellers, providing maneuverability and speed which are essential for recreational activities. Unlike larger vessels, personal watercraft are typically designed for one or two riders and emphasize quick acceleration and agility on the water.

The other options describe different types of vessels not fitting the definition of a personal watercraft. A vessel driven by a sail is a sailing craft that relies on wind for movement, lacking the motorized characteristics of a personal watercraft. A large cargo ship operated by a crew pertains to commercial shipping, while a fishing vessel designed for deep waters focuses on capacity and stability rather than the agile, compact design of personal watercraft.