The British blackade prevented

The blockade barricaded the German coast, Neutral British ports and mined the entire north sea The British blockade prevented weapons and other military supplies from getting through. Americans had been angry at the blockade, which threatened freedom of the seas and prevented American goods from reaching germen parts.

(a)

thurgood marshall

explanation: in 1954, thurgood marshall and a team of naacp attorneys won brown v. board of education of topeka, kansas. in this landmark decision, the supreme court held that segregation in public education violated the equal protection clause of the fourteenth amendment.