help you on what to be exact
The answer is: anecdote.
An anecdote is a short humorous or interesting story about a real story or person. In the excerpt from "A Simple Way to Create Suspense," the narrator describes an engaging account from his first job, which was in the television industry.
The overlap lies in the fact that both essays present an opinion on an idea with the goal showing deep understanding and personal thoughts regarding an entity, with the difference lying in argumentative essays also showing the second side to something, whereas persuasive essays only show one.
Holmes thinks it is a good idea because Sir Henry is being followed and it would be easier to find out who if they were at Baskerville Hall instead of in London with millions. there is not alot of people at Baskerville Hall
Parenthetical statements can be removed without changing the meaning or retracting away information from the sentence.