The overall purpose for the article concerning hope and hurricane Katrina is to show that searches for Katrina's missing end in both tragedy and hope. (option D)
Purpose is an author's objective or goal when writing. We may, for example, have the purpose to inform readers of a fact, to persuade them to do something, or to simply keep them entertained.
When we analyzing the title "Hope Survives in Search for Katrina's Missing," we can infer the author's purpose with the article. If hope is still there when searching for those who are missing, that means some of the people are still found alive.
Therefore, we can say that searches sometimes end in tragedy, but they also may end in hope. Every time someone is found alive, other families learn to hope that their loved ones are well.
With the information above in mind, we can choose option D as the correct answer.
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