The correct answer would be "a system in which some wolves in a pack are more powerful. . ."
According to article, there are some wolves in packs that hold more power than others. That creates a wolf hierarchy, that makes sure no havoc is taking place within the group, and everything goes smoothly.
In the body as a reason, is your answer sweetie. This is because the paragraph starts out with the words one explanation which signifies that this would be a reason.
Answer:
The wicked fairy bewitched the princess and made her fall into a long sleep.
Explanation:
that ok?