D. a campaign volunteer goes through a neighborhood asking for votes,
person to person campaigning
<span>In the 1920 the German economy collapsed as a result of B. Inflation. This inflation was so severe that it was referred to using the term hyperinflation. The cause of the hyperinflation was the massive war debt aquired by Germany as a result of the First World War. At the outset of the war Germany had removed its currency from the gold standard and borrowed heavily to finance its campaigns. The resulting debt meant that German currency was not backed by any real asset and so it lost purchasing power.</span>
Answer;
"Red scares" - spies
In the 1920's people reveled distrust of others as Red scares- spies.
Explanation;
Red scare is the promotion of widespread fear by a state or a society about a potential rise of Communism, anarchism, or radical leftism. It first occurred immediately after the world war I, <span>1919-</span>1920<span>, when many in the United States feared recent immigrants and dissidents, particularly those who embraced communist, socialist, or anarchist ideology. </span>