The statement that best explains why "Catholics and Jews" would complete the diagram above is: "Catholics or Jews led most organizations that opposed the Klan."
During the 1920s and 1930s, the Ku Klux Klan targeted various groups they deemed responsible for the nation's issues.
Catholics and Jews were also subjected to Klan prejudice due to their religious affiliations.
Both communities faced discrimination and were often scapegoated for societal problems.
Additionally, leaders from these communities often took a stand against the Klan's ideologies, leading various movements and organizations opposing their views.
The statement that best explains why "Catholics and Jews" would complete the diagram above is: "Catholics or Jews led most organizations that opposed the Klan."