What components are included in the round?

The correct choice highlights the essential components that make up a round, specifically in the context of ammunition. The inclusion of a fuse, safety wire, and body is standard in many types of munitions.

The fuse is critical for initiating the round's detonation at the appropriate time, ensuring effectiveness. The safety wire is a safety mechanism that prevents accidental firing before the round is intended to be used. Finally, the body is the main structural component that houses the payload of the round, making it a fundamental part of its design.

Understanding these components is vital for those involved in handling or using munitions, as they inform procedures related to safety, operation, and functionality of the rounds.