Which amendment to the Illinois Constitution outlines the amendment process?

The correct answer is found in Article XIII of the Illinois Constitution, which explicitly details the amendment process for the state's constitution. This article outlines how amendments can be proposed and ratified, emphasizing the mechanisms through which changes can be made to the document governing state laws and operations.

In the context of the Illinois Constitution, Article XIII ensures that there is a clear and structured process for amending the constitution, which is vital for maintaining the rule of law and adapting to changing societal needs. The procedures include steps for both legislative proposal and public voting, ensuring that amendments reflect the will of the people.

Other articles mentioned discuss different aspects of the Illinois Constitution. Article V focuses on the executive branch and the powers of the governor, Article IX pertains to revenue and taxation, and Article I contains the Bill of Rights. Each of these articles serves a distinct purpose and does not encompass the process for amending the constitution itself. Hence, Article XIII is the only article designated specifically for the amendment process.