Answer:
The correct answer is OptionA. Header
Explanation:
First we need to know that a header is a section that appears in the top margin of a document and usually contains information related to the document being sent. The purpose of the header is to give information about the author, the recipient, the subject and the date.
Because memos are usually a formal way of communication used within companies it is needed to understand who is sending it. This is why what is included in the Header is From who this memo is coming.
