What does hot-swappable mean for USB devices? A. They generate a lot of heat.
B. You need to restart the system to add or remove them.
C. They are only compatible with certain operating systems.
D. You can add or remove them while the system is running.
The correct answer is D. You can add or remove them while the system is running.
Hot-swappable means that USB devices can be connected or disconnected from a computer without needing to turn off the power or restart the system. This feature allows for greater convenience and flexibility in managing peripherals like keyboards, mice, and storage devices while the computer is actively running.