Final answer:
The statute that requires commercial emailers to provide a valid physical return address and offer an opt-out system is the CAN-SPAM Act.
Step-by-step explanation:
The statute that requires commercial emailers to provide a valid physical return address and offer an opt-out system permitting the recipient to unsubscribe is the CAN-SPAM Act.
The CAN-SPAM Act is a federal law in the United States that sets the rules for commercial email and requires senders to comply with specific requirements to prevent deceptive practices and protect consumer privacy.
By providing a valid physical return address and offering an opt-out system, commercial emailers allow recipients to have more control over the emails they receive and can easily unsubscribe if they no longer wish to receive communications.