This term describes a social contract that consists of rules enforced by the government.

The correct term in this context is law, as it refers to a system of rules created and enforced by governing authorities. Laws are designed to maintain social order and regulate behavior within a society. They establish what is permissible or impermissible, and violations of these laws typically result in penalties or legal consequences. Governments enact these rules to protect the rights of individuals, promote social justice, and ensure public safety.

Morality, on the other hand, pertains to personal or societal beliefs about what is right and wrong, which may not be codified into law. Ethics involves philosophical principles that guide an individual's or group's behavior but differs from legal frameworks as it is often based on moral reasoning rather than strictly enforceable rules. Best practice refers to methods or techniques that are widely accepted as being the most effective and efficient in a given field, rather than a codified set of laws enforced by the government. Therefore, law is the only term that specifically encapsulates the idea of a social contract with enforceable rules established by the government.