Which mail service should you use to send a business document via the United States Postal Service to ensure delivery in one day?

• A. First-class mail
• B. Priority mail
• C. Express mail
• D. Standard mail

Answer: (C)

Sending a business document with the objective of ensuring delivery within one day requires choosing the most expedited service offered by the United States Postal Service. Express Mail is designed specifically for urgent deliveries and guarantees overnight service, making it the ideal option for time-sensitive documents.

This service not only provides tracking and insurance options but also ensures that the parcel will arrive by the next business day. The speed and reliability of Express Mail make it the best choice for urgent business communications. In contrast, other mail services do not offer guaranteed next-day delivery and may take longer than one day, making them unsuitable for this specific need.