Answer:
if all the cattle are in kraal then none of them are out.
Well, since Elaborate is a synonym for explain, I would guess that the student would just have to explain more about the topic.
I`ve read this book like 9 times, so i`ll take a gander and say it`s C. Smaug had promised it to him if he led him to the dwarves.
I Am Almost Positive The Answer Is Exercise
Hope This Helped