What caused the Red Scare of the 1940s and 1950s?

A. the fear of addressing sensitive social issues such as racism and anti-Semitism in Hollywood movies

B. the fear that communists outside and inside America were working to destroy American life

C. the order that permitted government agencies to screen federal employees for political disloyalty

D. the act that made it unlawful to teach or advocate the violent overthrow of the U. S. government

the answer is B. The fear that communists outside and inside America were working to destroy American life