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.
<span>At the time the war broke out, there were an estimated 9.5 million Jewish people living in Europe. Europe is where most of the Jewish population lived at that time. With approximately 6 million Jews killed during the Holocaust, this means approximately 60% of the European Jewish population - and nearly 40% of the total worldwide Jewish population - were wiped out.</span>
In general it was white men own owned property who maintained power in the government of the colonies, and these were the same people who could vote in local and state elections.
The atomic bomb had the most impact on modern life beacuse it ended World War II, ushered in the nuclear age and made the world safe for humanity.