Final answer:
The key objective for mounting AV equipment in a rack is organization, stability, and accessibility.
Step-by-step explanation:
The key objective for mounting AV (audiovisual) equipment in a rack is to ensure proper organization, stability, and accessibility. By mounting AV equipment in a rack, it allows for centralized control and management of the equipment. Additionally, it helps prevent damage and reduces clutter by keeping all the equipment neatly organized in one place.