In a formal letter, 'Salutation' is a form of _________

greeting

In a formal letter, 'Salutation' is a form of: greeting. (OPTION 4)

The salutation in a formal letter is the opening part that serves as a polite greeting to the recipient. It typically includes phrases such as "Dear [Recipient's Name]" or "To whom it may concern," depending on the level of formality and the relationship between the sender and the recipient.