Well, rude can mean discourteous, without culture (without learning), or <span>rough in manners or behavior</span>
The answer is tragically.
Because in a summary you should use as <em>few</em> details as possible, and saying tragically horrible is too many details for one sentence.
Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)
Explanation:
While the main idea is usually in the first sentence, the next most common placement is in the last sentence of a paragraph. The author gives supporting information first and then makes the point in the last sentence.
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