The answer is (C), becuse the reader does not now was is threatening the characters lives. In the other answers it told "it" was thereatening their lifes. This is why (c) has the sentence fragment.
Answer:
"these charges had a lot to do with technology. Today, shoppers can buy anything the need online. It's faster and easier than going to a mall."
Explanation:
The reason technology affected malls was because everyone was buying online, rather than going to the mall in person. Plus, everyone is rude so who would want to go to a mall with rude people when you wouldn't have to deal with any of that online?
To avert is to prevent something from happening or prevent someone from doing something.