Final answer:
The correct answer is d) First class mail. First class mail refers to business or handwritten mail that weighs less than 11 ounces.
Step-by-step explanation:
The correct answer is d) First class mail.
First class mail refers to business or handwritten mail that weighs less than 11 ounces.
Priority mail and Express mail are other categories of mail that have specific requirements and costs associated with them, while standard mail is a category for bulk mailings.