Which of the Following Is Not a Good Reason for Adding

Which of the following is not a good reason for adding your name to the User name and Initials area in PowerPoint Options?

A) It is used to guarantee ownership of the presentation.
B) It is used to identify comments that you make.
C) It is used to indicate if you were the last person to modify the presentation.
D) It is used to indicate if you were the author of the presentation.