Concept:A state requires four essential elements to exist.
Explanation:The four necessary attributes of a state are population, definite territory, government, and sovereignty.
Population provides the people living in the state.
Definite territory gives the state its physical boundaries.
Government organises and rules the people within that territory.
Sovereignty means the state has supreme power over its internal and external affairs.
All these four elements must be present for any political community to qualify as a state.
Option A correctly lists these four attributes.
Answer:A. Definite territory, population, sovereignty, and government.