What type of legal system relies on the accumulation of decisions made in prior cases?

The correct answer is grounded in the principle of common law, which is a legal system that develops through the accumulation and interpretation of legal precedents established in earlier court cases. In a common law system, judges play a crucial role by interpreting laws and their applications based on prior rulings, which creates consistency and predictability in the law. This reliance on precedent means that similar cases are decided in similar ways unless there is a strong reason to deviate from established rulings.

The concept of precedents is foundational to common law, distinguishing it from other legal systems such as civil law, which is primarily based on codified statutes and legislation rather than judicial decisions. While corporate law pertains to the laws governing the formation and operation of corporations, it does not specifically refer to a type of legal system based on case law accumulation. Therefore, common law is the best fit as it emphasizes the importance of previous judicial decisions in shaping the law over time.