Which of the following is TRUE about first-class mail?

First-class mail is primarily designed for the delivery of standard letters, postcards, and small packages, making it a popular choice for personal correspondence and business communications. It is more affordable compared to other mailing options, such as priority or express services, which are intended for faster delivery. This affordability makes first-class mail accessible for everyday use, appealing to a wide range of customers who seek efficiency without the higher costs associated with expedited services.

In contrast, other options mentioned suggest characteristics that do not accurately describe first-class mail. For instance, while first-class mail is relatively fast, it is not the fastest shipping method available, as that title belongs to express and priority services. It also does not inherently require a delivery confirmation fee, which is typically an add-on option for tracking packages. Similarly, first-class mail does not come with a built-in insurance policy; policies for insurance are separate and typically apply to other mailing services, such as priority mail. Thus, recognizing first-class mail as an affordable option for standard letters highlights its primary function and appeal.