Question

1. what does undo allow users to do?

delete or move a selection in a document and undo or put the selection back if the user changes his or her mind.
delete a selection from one document and undo the selection in another document
permanently delete a selection
copy and paste a selection

Explanation:

The Undo function is typically used to reverse actions (like deletion or moving) within the same document. Option 1 describes deleting/moving a selection and then undoing (putting it back) within a document. Option 2 is incorrect as Undo usually works within the same document. Option 3 is wrong because Undo is the opposite of permanent deletion. Option 4 (copy - paste) is a different operation from Undo.

Answer:

delete or move a selection in a document and undo or put the selection back if the user changes his or her mind.