Answer:
B. it increased the danger since it was stronger than the atomic bomb
Explanation:
with the strength of the hydrogen bomb it affected the arms race
The nineteen twenties are remembered as a quiet period in American foreign policy. The nation was at peace. Americans elected three Republican presidents in a row: Warren Harding, Calvin Coolidge and Herbert Hoover. These conservatives in the White House were generally more interested in economic growth at home than in relations with other countries.
But the United States had become a world power. It was tied to other countries by trade, politics and shared interests. And America had gained new economic strength.
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D. The reform party. This party believes in campaign finance reform, including strict limits on campaign contributions and the outlawing of political action committees.