Case 1 You Have the Save as Dialog Box Open and You

Multiple Choice

Case 1
You have the Save As dialog box open and you are naming a file on which you have been working.
-You have been trying to name your first communication to one of your clients COM1. Why will this not work?

A) You cannot use all caps in a file name.
B) You cannot use the numeral 1 in a file name.
C) The name is reserved by the operating system.
D) This will in fact work.