The letter is I.
Eyes are part of the head.
yes
No, there is no comma between the month and the date in the heading of a letter. For example, "October 1, 2021" would not have a comma between October and 1 in the heading.
For a standard style business letter, the heading is justified at the center of the page. For a block or semi-block style business letter, the heading is justified at the left margin. Note: The heading consists of the senders return address, phone number, and date. When using letterhead or stationery with preprinted return address, the heading consists of the date only.
The heading of a letter typically includes the sender's address and the date. It is usually placed at the top right or left corner of the page.
heading
address and the date
it indicates where the letter originates and when it was written
it indicates where the letter originates and when it was written
to whom the letter is being sent to
to whom the letter is being sent to
letter heading is the first letter start
Column heading