Which of the following is a key component in the creation of state courts?

The key component in the creation of state courts is the state constitution. Each state in the United States has its own constitution, which serves as the foundational legal document that outlines the structure, authority, and functions of the state government, including the judicial branch. This constitution establishes the framework for the state's court system, detailing the organization of courts, the powers of judges, and the procedures to be followed in legal matters.

State constitutions also provide the legal authority to establish various levels of courts, such as trial courts, appellate courts, and, in some states, specialized courts. Additionally, they may include provisions for the appointment and election of judges, ensuring that the state courts operate within the parameters laid out by the state's governing document.

In contrast, federal statutes apply only at the national level and do not dictate the creation or structure of state courts. International treaties are agreements between countries and do not influence state court systems. Local ordinances are laws enacted by local government bodies and usually pertain to municipal regulations rather than the establishment of judicial systems. Thus, the state constitution is essential for the formation and regulation of state courts.