I believe the answer is option A
College or uni .... i think
The declaration of independence
It was significant because at the
time we were divide between a strong national government or a nation of states whom ran themselves
Your answer would be, The philosophy of Judicial Activism was used in Brown v. Board of Education, Because, it allowed for a complete policy shift, and moved away from the "Separate but Equal" which was ok before this.
Hope this helps!!!