To make the text more detailed and more intresting, to catch their attention
Answer:
D
Explanation:
"You jumped", is the perfect answer as it is second person ("you"), singular, and uses the word jump in a past tense ("jumped")
The answer is B: Less than a decade ago, the HSUS...an affiliate [Human Society International].
Brackets are used to give the writers (when they need to add information) an opportunity to add an explanation, or emphasis to a word, or change a <em>quote to fit to a sentence, but without changing the meaning of the text</em>. In A) <em>global work</em> doesn't need explanation; C) <em>decade</em> doesn't need explanation; D) <em>HSUS</em> was already explained in the first sentence of the text.
