What is required for a package to qualify for the Return Receipt service?

For a package to qualify for the Return Receipt service, it is essential that it is sent as Priority Mail. The Return Receipt service is designed to provide the sender with proof of delivery and the signature of the recipient, and it is specifically available for Priority Mail and certain other designated services. Priority Mail is a reliable option that guarantees faster delivery times while also offering additional features such as tracking and delivery updates.

While there are other mailing options available through USPS, not all services permit the Return Receipt feature. This makes the requirement of being sent as Priority Mail a crucial aspect. The other answer choices do not align with the established guidelines for this service; thus, they do not meet the requirements necessary for a Return Receipt.