What policy did the us establish after wwll to stop the spread of communism

Need on these last 2 questions on my social studies homework 5 and 6 then i’m done with the homework

When president johnson vetoed a law that would extend the freedmen’s bureau, congress reacted by supporting the veto and closing the freedmen’s bureau. writing a new law to show support for the black codes. overriding the veto and expanding the agency’s powers. drafting a law to prevent african americans from voting.

Which of the following wrote detailed accounts about early native american? a) spanish b) french c) americans d) mexicansi need this !