Which component is specifically designed to connect and disconnect easily?

The hook is specifically designed to connect and disconnect easily due to its shape and operational functionality. Hooks are commonly used in various applications to quickly attach and detach loads without the need for complex mechanisms or tools. This design allows for swift operations in dynamic environments, making them ideal for situations where speed and efficiency are critical, such as in air transport or equipment rigging during military operations.

In contrast, the other components, such as drilled bolts, yokes, and eyes, typically require more deliberate actions to secure or release loads. Drilled bolts are designed for a more permanent fastening solution, and while they may have a method for removal, the process is not as quick and simple as with a hook. Yokes serve to provide support and stabilize load connections but do not inherently possess the same quick-release capability as hooks. Eyes are mainly used to create a loop for other hardware to connect to, and while they can facilitate load connection, they do not have the same ease of disconnecting as hooks.