You will also want to make sure you have time to edit your essay.
Explanation:
The options you were given are the following:
You may want to offer some background information in your introduction.
You will also want to make sure you have time to edit your essay.
Introductions should contain a thesis statement.
Introductions need to have an interesting opening.
What the student needs is information on how to write a good introduction paragraph. Including background information, a thesis statement, and an interesting opening are all good advice on how an introduction should be written. The only advice that does not fit is the second one - that the student should make sure to have enough time to edit their essay. That is not relevant to what a proper introduction paragraph should look like.
Thus, the correct answer is: <em>You will also want to make sure you have time to edit your essay.
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