The user interface (correct answer is a)
Answer:
The correct answer is <u>mainframe</u>
I hope this helps! ^-^
Answer:
While you'll use Save or press Ctrl+S to save an existing workbook in its current location, you need to use Save As to save your workbook for the first time, in a different location, or to create a copy of your workbook in the same or another location.
Did you forget the picture?
