The Following Questions Refer to the Excerpt Below

The following questions refer to the excerpt below.
"This unwarranted exercise of power by the court [in Brown v.Board of Education] contrary to the Constitution,is creating chaos and confusion in the states principally affected. It is destroying the amicable relations between the white and Negro races that have been created through ninety years of patient effort by the good people of both races… Without regard to the consent of the governed,outside agitators are threatening immediate and revolutionary changes in our public school systems…We decry the Supreme Court's encroachments on rights reserved to the states and to the people,contrary to established law and to the Constitution."
Manifesto of One Hundred Members of the U.S.Congress,1956
-Civil rights activists in this era

A) openly challenged the dominant economic order.
B) were successful in achieving racial equality.
C) focused exclusively on using the court system to achieve victories.
D) utilized a variety of strategies to combat racial discrimination.