I would say the correct answer is B. <span>focus on a key idea or a question raised by the essay to which you're responding.
The most important thing you should do when writing a response paper is to bring your attention to the main message that the original author wanted to convey. You should criticize (positively or negatively) whether the author managed to get his or her ideas through and then move on to other elements of the text.
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The purpose would be to inform because it is showing you how to cook.
Flashbacks are used to recount events that happened before the story's primary sequence of events to fill in crucial backstory.