An IT Professional Recently Assisted Ann, a Customer, with Updating

Multiple Choice

An IT professional recently assisted Ann, a customer, with updating her password and regaining access to a hijacked email account. Shortly afterward, Ann notices dozens of unwanted emails, thanking her for subscribing to an organization's mailing list. Which of the following should be performed to remove and prevent any further emails from this organization?

A) Click the "Unsubscribe" button on each unwanted email
B) Send the unwanted items to the spam or junk folder
C) Deploy an email address whitelist
D) Create domain-based filters