Final answer:
Public policy is the broad strategy government uses to address matters of concern to society. It involves the state legislature, the executive branch, the courts, and the Constitution. Supreme Court rulings can shape policy through interpretations of the Constitution.
Step-by-step explanation:
Public policy is the broad strategy government uses to do its job, the relatively stable set of purposive governmental behaviors that address matters of concern to some part of society. It involves decisions made by the state legislature, the executive branch of the government, and the courts that decide what would have a negative impact on society. The Constitution also plays a role in shaping public policy. For example, Supreme Court rulings can help shape policy through interpretations of the Constitution.