Which type of mail includes first class mail and periodicals?

The correct choice is Mailing Services, as it encompasses various categories of mail that are intended for distribution to recipients. First Class Mail, known for its speed and reliability, includes letters, postcards, and parcels that are delivered quickly. This type of mail is often used for personal correspondence, important documents, and time-sensitive items.

Periodicals, which include newspapers and magazines, are also categorized under Mailing Services. They are published at regular intervals, making them distinct in nature and also important for readers who rely on timely delivery of news and information.

Combining these two, Mailing Services provides a comprehensive classification that captures both First Class Mail and periodicals under one umbrella, reflecting their shared qualities of delivery speed and communication purpose. Understanding this classification helps clarify how different mail types are categorized for processing and delivery by the USPS, ultimately contributing to effective mail management and customer service.