What is the difference between a term "fly system" and "rigging system"?

The term "fly system" specifically denotes a method designed for raising and lowering elements such as scenery and lighting fixtures in a theatrical context. This system is integral to stage management, allowing for quick scene changes and adjustments during performances. A fly system usually comprises a series of pulleys, ropes, and counterweights that work together to control the movement of these elements efficiently and effectively.

In contrast, "rigging system" is a broader term that encompasses all methods and equipment used for suspending or securing objects, which can include not only the fly system but also various ways of hanging equipment like audio speakers, projection screens, and other technical gear. The rigging system covers a wider range of hardware and techniques, including static and mobile solutions that are used across different settings within the theatre or other performance spaces.

While both terms relate to the manipulation of equipment in theatrical settings, they serve distinct roles within that framework. A fly system is focused specifically on movement, whereas rigging systems encompass all forms of support and suspension structures. Thus, option C accurately captures this distinction.