Final answer:
A business communication should be closed politely and professionally using a closing line like 'Thank you' or 'Sincerely,' followed by a comma, a signature, and a typed full name.
Step-by-step explanation:
When closing a business communication, there are conventional practices that help convey respect and professionalism. It is common to conclude with a polite closing line, such as 'Thank you,' which is less formal but still professional. A complementary close such as 'Sincerely' might be used for more formal letters. The closing should be followed by a comma, and after leaving a space, your typed full name should be included. Where applicable, a handwritten signature is placed between the closing line and the typed name.
Referencing specific examples, as in literature with Dupin or within a corporate context as mentioned by Krogstad, illustrates the importance of clear and respectful closure to correspondence. When communicating in emails, it is essential to maintain etiquette by using proper salutations at the beginning and a courteous closing at the end, signing with your full name, and including relevant identifiers like a course title if necessary.
Following this protocol ensures clarity, evidences your attention to detail, and it maintains professionalism. This approach in written communication is relevant not only in drafting business letters but also applies to sales receipts, emails, cover letters, and other business-related documentation where a signature and closure are required.