The correct answer is true
The Marshall plan helped in stopping the communist aggression and expansion in Europe during the Cold War by establishing a global trade wherein it emphasizes "free market" and "encourage European peace." The plan helped to economically sustain and stabilized the war-torn countries in Europe.
The case in question is "Brown vs. Board of Education" - and it dealt with the question whether the racial segregation of schools is lawful - with the decision reached being "no" - this case ended the state-organised racial segregation of schools.
Among the options, the best answer is "<span>Allow African American children to attend the school of their choice" - so that they could attend the school which up to then were "white" schools.</span>
Answer: Its B. established the national government's supremacy
Explanation: I just got it right on the test ._.