What does USPS stand for?

The correct answer is United States Postal Service. This acronym accurately reflects the official name of the organization responsible for providing postal services in the United States. The USPS plays a crucial role in facilitating communication and shipping across the country, ensuring the delivery of mail and packages to individuals and businesses alike.

The terminology used in the other options does not correspond to the recognized name of the postal service in the United States. For instance, phrases like "Universal Services and Parcel Service" and "United Shipping and Postal Solutions" have incorrect wording or structure that does not align with the official designation. Similarly, "United States Postal Systems" incorrectly incorporates "Systems" rather than "Service," further differentiating it from the well-established postal entity.