Chicago is notorious for a very large homicide rate. 363 people have been killed this year, and some years even more have been killed.
John Rolfe introduced tobacco, which became a major cash crop throughout the colonies.
Hyperbole is the use of over-exaggeration to create emphasis or humor. I'm not exactly sure what to do for the last 2 things. Sorry
My best answer would most likely be a. Editing the language of your essay.
Editing the title is only a first impression and could be followed by a piece of writing lacking in flow. Editing punctuation would be my second choice, but it doesn't apply as much, in my opinion. And for the last choice, I'm pretty sure at least on of the three are practical options.