Beginning with the red scare of the 1920s, which historical development contributed to a recurring pattern of anti-communism in the united states?

a. growing prosperity following wwii

b. accusations made by senator joseph mccarthy in congress

c. increased unemployment during the great depression

d. migration from the great plains during the dust bowl

The Great Depression caused by World War I made massive unemployment and economic turmoil in America.  This unstable condition pushed workers to
create labor unions that later on organized strikes. These Unions were believed to be influenced by communists from the Soviet Union. To keep the people away from joining Trade Unions the government started the Red Scare.