Which of the following is not one of the three main schools of jurisprudence that have vied for dominance in the United States?

Groups that tackle unpopular issues:

a. Should give up and focus energy on issues that have a chance. b. Lay the groundwork for subsequent policy changes. c. Are able to gain political support. d. Have the best chance at initiating change at the agency level.

The Supreme Court justice who compared unpopular political speech to falsely shouting fire in a theater was

What will be an ideal response?