The sentence that should be revised to reduce wordiness is D. The speech that the computer science expert gave regarding online data mining was filled with information and was also very entertaining.
Explanation:
<u>Wordiness</u> refers to taking more words than necessary to make a point. Since the excess of words could clutter writing, wordiness should be reduced in some sentences, such as sentence <em>D. The speech that the computer science expert gave regarding online data mining was filled with information and was also very entertaining.</em> Possible improvement: <em>The speech that the computer science expert gave regarding online data mining was very informative and entertaining. </em>
