I’m not sure but I think option D;
To help Americans build their own fallout shelters
Explanation:
United States civil defense refers to the use of civil defense in the history of the United States, which is the organized non-military effort to prepare Americans for military attack.
The answer you’re looking for I believe, is Commerce.
Answer:
decimated Europe's population, political, and economic systems
Explanation:converted to Islam and was a great admirer of the sophisticated culture
Answer:
i think it B sorry if im wrong tho
Explanation: