What is not a part of the format for a letter to the editor?

Double spacing-+? This question is confusing because I'm not sure what it's supposed to be compared to, is it a multiple choice question? What IS apart of the format to a letter to an editor is your name and address preferably on the top right and the editor's name and address in the top left of the header, a proper intro, a salutations, correct indentation and paragraph spacing, and to make your point and end your train of thought properly to capture your reader's attention.

i do not know what the passage is but i can give some examples

1. repetitive phrases may be used to create a emphasizing tone

2. pauses in sentences are used to create a dramatic effect but can also be suspenseful

3. using lots of exclamation marks and loud speech such as words in all caps can be creating a excited or possibly angry tone.

4. using lots of questioning phrases my mean that they are in suspicion of something.

5. using lots of questionable statements or questions can imply of a sneeky or sly tone.