The correct answer is: A. PowerPoint
PowerPoint is a presentation software application developed by Microsoft. It is commonly used to create slideshows that can be presented to an audience. PowerPoint is not a term pertaining to email because it is not used to send or receive emails.
The other options are all terms that pertain to email. Inbox is the folder in an email client where incoming emails are stored. Sender is the person who sends an email. Receiver is the person who receives an email.
I hope this helps! Let me know if you have any other questions.