Respuesta :
Answer:It identifies the writer's purpose. It indicates where the letter originates and when it was written.
Explanation:The heading of a business letter includes the mailing address of the company or individual writing the letter. It also includes the date the letter was written. A heading is a necessary part of any letter, and it is particularly important in business ones. The heading not only allows the letter to look professional, but also provides vital information.
Answer:
the first one. it indicates where the letter originates and when it was written