What type of mail would likely be used for bulk advertising?

The correct choice is Standard Mail, which is specifically designed for bulk advertising and promotional materials. This class of mail offers a cost-effective option for businesses looking to distribute large volumes of mail pieces, such as advertisements, brochures, and catalogs. Standard Mail allows for non-urgent delivery, making it suitable for businesses that do not require immediate delivery, thus providing significant savings on postage for bulk mailing operations.

Standard Mail is often used due to its less stringent requirements for speed and tracking compared to other mail types, enabling businesses to reach a wide audience without incurring high costs. This option allows for saturation mailing efforts, targeting entire neighborhoods or specific demographics based on various address criteria, which is particularly advantageous for marketing campaigns.

In contrast, options like First-Class Mail and Priority Mail Express are intended for time-sensitive communications and packages that require prompt delivery, making them less ideal for bulk advertising. First-Class Mail is primarily used for personal correspondence and important documents, while Priority Mail Express offers expedited service with additional features like tracking and insurance, which are not necessary for bulk advertising purposes. Priority Mail also focuses on faster delivery options, making it more suitable for parcels that need to reach the recipient quickly, further differentiating it from the needs of bulk advertising mailings.