Which of the following legal systems is based on societal customs and court decisions?

The legal system based on societal customs and court decisions is known as Common Law. This system evolves through the judgments and rulings made by judges in individual cases, creating precedents that inform future cases. In contrast to statutory law, which is established through legislative bodies, common law emphasizes the role of judicial interpretation and the evolving nature of legal principles based on societal norms and historical practices. This means that the outcomes of specific court decisions can influence and shape the interpretation of laws over time. This adaptability to societal changes and the reliance on past judicial decisions are defining characteristics of the Common Law system.