Explanation:

- Enforceable (Option 1): An agreement that can be upheld in a court of law. For an agreement to be enforceable, it must not involve illegal activities or be against public policy.

- Void (Option 2): A contract that is not valid from the beginning and cannot be enforced by either party. Agreements that involve illegal acts or violate public policy are void.

- Valid (Option 3): A contract that meets all legal requirements and is binding on the parties involved. It must have mutual consent, consideration, legal purpose, and competent parties.

- Voidable (Option 4): A contract that is initially valid but can be rejected by one party due to certain circumstances, like misrepresentation or coercion.

- The agreement involves securing employment in public service, which could be considered against public policy or involve illegal conduct, making it not enforceable by law.

- Therefore, Void (Option 2) is the correct choice.

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