How does the USB section of a system report help you diagnose accessory problems?

The USB section of System Information helps determine whether macOS actually detects a USB accessory at the hardware level. Apple troubleshooting guidance instructs users to open System Information and check the USB or Hardware section to confirm that a connected accessory appears in the system report. Therefore, option A is correct. If the device is listed, the Mac recognizes the hardware connection, and troubleshooting can proceed to software, configuration, power, or accessory-specific issues. If it does not appear, the connection, cable, port, hub, power, or accessory itself may need investigation. System Information does not automatically repair USB drivers and does not provide warranty-claim history. It also displays many categories of USB hardware—not merely storage devices—including speakers, adapters, printers, and other attached USB accessories.

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