Answer:
C. Both contributed to fear of other countries after the war.
Step-by-step explanation:
U.S. Congress passes Sedition Act. ... The Espionage Act, passed shortly after the U.S. entrance into the war in early April 1917, made it a crime for any person to convey information intended to interfere with the U.S. armed forces' prosecution of the war effort or to promote the success of the country's enemies.