. . . . . . . . is used to delete a certain code from the code editor window.

The correct answer is B. Delete.

The Delete key is used to delete a certain code from the code editor window. It is located on the right side of the keyboard, below the Enter key. To delete a code, simply select the code you want to delete and press the Delete key.

The other options are not correct.

• Edit is used to make changes to a code.
• Truncate is used to remove the last part of a code.
• Free is not a keyboard shortcut.