Whether you are assigned a general issue to investigate, given a list of problems to study, or you have to identify your own topic to investigate, it is important that the scope of the research problem underpinning your study is not too broad, otherwise, it will be very difficult to adequately address the problem
I think this might be a by any chance
By doing so you'll be able to identify useful information and through out information you don't need. It's like lets say someone says something about you you know it's not true so you can just ignore it. it also helps with fiction and non fiction stories. :)
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Fitzgerald used indirect characterization by describing Gatsby's action, like when "he nearly toppled down a flight of stairs" ( Fitzgerald 91), instead of saying Gatsby was nervous. This is another way for Fitzgerald to be descriptive by describing Gatsby instead of stating what he is.
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D) "Add sentence variety."