what do you mean do you need me to give you a sentence with it or something what is the question?
Answer:
The story's time period provides the reader with a reference point, for if someone reads a book about the early eighteen hundreds, they can assume that slavery has not yet been abolished and that people are outwardly racist. This helps provide a reference point, as if you didn't know the time period, you would be confused as why these events were happening.
Explanation:
Which is the underlined word? If it is effortlessly it is an adverb
He wants the reader to think critically about the war