​ Britta Is Making a Form Letter That Contains the Names

Multiple Choice

​ Britta is making a form letter that contains the names of potential clients, their designations, their addresses, and a text inviting them to attend her company's product launch. She intends to use a mail merge to create individual messages for each client. Which part of her form letter is the main document?

A) The names of the clients
B) The addresses of the clients
C) The text inviting the clients to the event
D) The designations of the clients