Concept:Sovereignty is the supreme, absolute and unlimited authority of a state, which is not bound by any law.
Explanation:The phrase "sum total of authority in a state unrestrained by law" is a standard description of sovereignty.
It is the highest source of power within a state.
No individual, group, or external body can legally place limits on this authority.
A sovereign state makes its own laws and is not answerable to any higher power.
This authority covers every person and organisation within the territory of the state.
Monarchy and oligarchy are simply forms of government; each describes who rules, not the full authority of the state.
Society refers to the body of citizens, not to the ruling authority itself.
Therefore, the option that best matches the definition is "sovereign."
Answer:D. sovereign