Answer: Preview Statement or Hook Sentance
Explanation: Whenever writing an introduction paragraph or a supporting paragraph, you need a hook sentence/preview sentence to catch the reader's attention/interest. This is important because the reader will be interested and would pay more attention to your "speech" It can also give a statistic, fact, example, etc...... They can also hint at something or could be somewhat of a paraphrase of the story or paragraph. I hoped this helped! ^-^