(d) They were extremely radical.
Answer:
According to a source:
Red Scare Impact The Red Scare was hysteria over the perceived threat posed by Communists in the U.S. during the Cold War between the Soviet Union and the United States, which intensified in the late 1940s and early 1950s. (Communists were often referred to as “Reds” for their allegiance to the red Soviet flag.)
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GOIGN AWAY FOR THE SUMMER
The burning of the American flag was determined a form of symbolic speech, protected under the First Amendment to the United States Constitution in the Bill of Rights.
Farmers struggled with low prices all through the 1920s, but after 1929 things began to be hard for city workers as well.