What happens when you open a folder in Windows 10 OS and press the CTRL+A key?
1
All files except sub-folders of the current folder are selected.
2
All subfolders except files in the current folder are selected.
3
All files and sub-folders in the current folder are selected.
4
Only the first 10 files and sub-folders of the current folder are selected.
5
Switches between open apps