Correct Option: B

Law developed in a court is often referred to as Case Law, or Common law. It can serve as a precedent. It serves as a guideline for future court cases, used as a reference point for similar decisions. In most countries, the term is applied to any set of rulings on law which is guided by previous rulings, for example, previous decisions of a government agency--that is, precedential case law can arise from either a judicial ruling or a ruling of an adjudication within an executive branch agency.