Which component is primarily responsible for handling the electrical signals in an AV system?

The correct answer is that the cable is primarily responsible for handling the electrical signals in an AV system. Cables are the transmission medium that carries audio and video signals from one component to another, such as from a source device like a DVD player to a display device like a projector. They serve as the pathways through which the electrical signals travel, ensuring that the integrity and quality of the audio and video signals are maintained as they pass between various components of the AV system.

In contrast, a switcher manages which signals are sent to the output, allowing for the selection of different input sources, but does not handle the electrical signals directly. A connector allows for the physical connection between different devices using cables but is not responsible for signal transmission itself. The controller typically manages system functionality, directing how components interact, but again, does not physically carry the electrical signals.