Depends on what you are talking about for example if you are talking about a nonfiction or an opinion piece then the author might use transition words to move smoothly on to the next paragraph or to start a new topic.
If it's a fiction then it's most likely using descriptive language, p.o.v , dialogue and character development I. The story
Another word for influence is influential
Answer:
I think it would be sender
<span>D. They are written in the format of a business letter.</span>
