Final answer:
A state's constitution establishes the duties and responsibilities of state government, defining the powers of its branches and the organization of state courts. Option C is correct.
Step-by-step explanation:
The duties and responsibilities of state government are established by a state's constitution. While the U.S. Constitution outlines the structure and powers of the federal government, each state has its own constitution that defines the specific powers and responsibilities of that state's government, including its executive, legislative, and judicial branches.
State constitutions lay out the organization of the state's courts, and although the U.S. Supreme Court has the final say on matters of federal constitutional law, state constitutions govern the authority of state-level courts on state laws.