Explanation:

- Enacted Law:

- These are laws formally passed by legislative bodies.

- They serve as the primary source of law in many jurisdictions.

- Case Law:

- Also known as judicial precedent.

- Laws expressed in past judicial decisions that are used as references for future cases.

- Customary Law:

- Derived from traditional customs and practices.

- Forms the basis for legal principles in some communities, although less common in modern legal systems.

- All of the Above:

- Legal systems often utilize a combination of enacted, case, and customary laws.