According to the CAN-SPAM Act, every email advertisement for real estate services must do all...

Comprehensive and Detailed Explanation (150–250 words):

The CAN-SPAM Act of 2003 governs commercial email. Key requirements include:

Emails must not use misleading subject lines (A).

Must include the sender’s valid physical postal address (B).

Must provide a clear, simple way to opt out of future emails (C).

Opt-out requests must be honored within 10 business days, not 180 days.

Thus, advising that it will take 180 days to remove an email address is not compliant.

Correct answer: D.