The feature that can be disabled to stop the automatic installation of files and programs from USB is D. AutoPlay
What does AutoPlay do?
AutoPlay is a feature of Microsoft Windows that automatically launches applications or takes other actions when you insert a USB device or other removable media into your computer.
For example, AutoPlay can be used to automatically open a folder containing the device's contents, start a music player, or run an installation program.
If you want to stop the automatic installation of files and programs from USB devices, you can disable AutoPlay.
The full question is:
Which feature can be disabled to stop the automatic installation of files and programs from USB devices?
PnP
AutoRun
UPnP
AutoPlay