What were the major events of the new left?

Under the Alien Registration Act of 1940, also called the Smith Act,

Communist Party leaders are convicted of conspiring to advocate the

overthrow of the U.S. government by force; Communist-led unions are

expelled from the Congress of Industrial Organizations

In 1954, U.S. Supreme Court declares school segregation unconstitutional in

Brown v. Board of Education; in response, southern whites form Citizens

Councils to lead a campaign of "massive resistance" to desegregation.

c. the dred scott v. sandford case,

the correct answer is batering