What Idea Based on the Eugenics Movement Reinforced Anti-Immigration Bias

What idea based on the eugenics movement reinforced anti-immigration bias in the United States?

A) Heredity determined almost all a person's capacities, and genetic inferiority predisposed certain races or ethnic groups to crime and poverty.
B) Catholicism compelled immigrants of that faith to show allegiance to the Pope rather than to the U.S. government.
C) Immigrants had weak minds influenced by radicalism and Bolshevism.
D) Lighter skin and hair color that were predominant in northern Europeans predisposed them to physical weakness, and therefore, they were less desirable as immigrants to the United States.