Which of the following ensured the practice of democracy in the pre-colonial Yoruba political system?

The practice of democracy in the pre-colonial Yoruba political system was ensured by "checks and balances." In this system, power was divided among different levels of government, and each level had its own responsibilities and limitations. This division of power prevented any one person or group from becoming too powerful and abusing their authority. Additionally, the Yoruba political system had a system of councils and assemblies made up of representatives from various social groups. These councils and assemblies served as forums for public debate and decision-making, allowing for a more participatory and inclusive democracy. The combination of these features created a system of government that was relatively stable, accountable, and responsive to the needs of the people.