MCQ: Why are disposable email addresses useful?

• A. It is useful for someone who needs to give out their email or sign up to a website, but wants to protect their real email address from SPAM.
• B. It is useful for spammers to create false email addresses that does not exist in order to spoof the from email in their spam messsages.
• C. It is useful for spammers who want to send out a one time mass email, but never use that same email address again
• D. It is useful for people who do not want their emails to be read