D. a short video clip about a few animals that were recently declared extinct
(Photo for proof at the bottom.)
<h2>Explanation:</h2>
D is the best answer because it talks about multiple animals, and it is not too lengthy. When using multi-media in a presentation, you don't want to make it too long, or the audience may become overwhelmed or bored. Answer D is more credible because it talks about multiple animals going extinct. People tend to disregard the cause of something unless it affects more than 1 thing.