Respuesta :
The four essential prerequisites for a country state are territory, population, territory, government, and sovereignty,. At the end of the day, country states must govern themselves, have an arrangement of administer, individuals and a place to manage over. Therefore the answer is A.
Correct answer choice is:
A. Ethnicity.
Explanation:
Population
Each state must be inhabited; it must have a population (people).
Supremacy
The state has supreme authority within its region. It can determine its own systems.
Rule
The state establishes and administers its plans through a management.
Region
Each state needs to have land, with established and identified borders.