Which item is defined as the tripod mechanism that facilitates quick mounting and dismounting of the camera to the tripod head?

• A. Jib Arm
• B. Spreader
• C. Quick Release Plate
• D. White Balance

Answer: (A)

The item is a quick-release plate. It stays attached to the camera's bottom (usually with a standard screw), and the plate slides into a matching quick-release clamp on the tripod head. When you want to mount or remove the camera quickly, you open the clamp, snap the plate in or out, and close the clamp to lock it in place. This setup lets you switch between tripod and handheld or between different rigs with minimal fuss, without fiddling with screws each time.

Jib Arm is a long, crane-like extension for moving the camera through space, not for attaching to the tripod head. Spreader is the brace that connects the legs of the tripod to keep them apart, and White Balance is a camera setting that adjusts color temperature.