Which command is used to clear the screen A. Cls B. Clear C. Clscreen D. All of above

cls is the original command for clearing the screen. It was introduced in MS-DOS 2.0.

clear is a newer command that was introduced in Windows 95. It is equivalent to cls.

clsscreen is a command that was introduced in Windows XP. It is equivalent to cls and clear.

All three commands work in the same way: they clear the screen of all text and cursor position.