Which of the following is NOT considered a USPS competitive product?

Parcel Select is a product that is primarily aimed at bulk shippers and is not classified as a competitive product by USPS. Instead, it is considered a part of the USPS Standard Mail service. This service is designed for large volume shippers who require cost-effective parcel delivery solutions, but it does not compete directly with private carriers in the same way as Priority Mail Express, First Class Package, or Parcel Return Service.

On the other hand, Priority Mail Express and First Class Package are more widely recognized as competitive products because they provide expedited shipping options that compete directly with private delivery services. Parcel Return Service, too, supports returns for items shipped via competitive services and enhances the options available to online retailers and consumers, further placing it in the competitive category.