Case law provides the court system with which of the following?

The choice related to guidelines for interpreting and applying statutes and administrative rules is correct because case law, formed through judicial decisions and interpretations, establishes precedents that influence how laws are understood and enforced in future cases. When courts encounter ambiguous statutes or administrative rules, they look to previous rulings to guide their interpretation, ensuring consistency and clarity in legal reasoning.

Case law serves as a critical resource for judges, attorneys, and legal scholars to understand how written laws have been interpreted and applied in various circumstances. This helps maintain a stable legal framework where similar cases are treated similarly, supporting the rule of law and promoting fairness in the justice system.

The other options, while related to law and the judicial process, pertain to aspects that are not primarily the function of case law itself. Creating new laws is typically the domain of legislatures, governing court procedures falls under procedural rules set by courts, and rules for jury selection are often established through statutory law rather than case law interpretation.