Answer:
I am guessing <u><em>A.) Yearly Migration</em></u>
Explanation:
The reason why I think this is because;
Option B, is part of civilization. We use it in our every day lives.
Option C, is also part of civilization. How else will we be alive right now in the United States?
Option D, is the main part of civilization.
On the other hand, <u><em>Option A.) Yearly Migration</em></u> is the correct choice, because it doesn't really make any sense why it should be part of a civilization.
