Had to look for the options and here is my answer.
Chief Justice Earl Warren is known as the former governor of California and under his leadership, the Supreme Court focused on the said issues but one which is the overturning the precedent of "separate but equal". This is with regards to school segregation. Hope this helps.
B because Nazis & Hitler fervently hated communism & Staline
It drastically reduced the Jewish population in Europe and surrounding areas
Through a system of hundreds of national parks and monuments.
