Correct answer: (a) A community of persons permanently occupying a definite territory independent of external control and possessing an organized government
Explanation
- A
A community of persons permanently occupying a definite territory independent of external control and possessing an organized government
People + territory + government + sovereignty (independent of external control). The textbook four-element State.
- B
A politically organized people of a definite territory and possessing an authority to govern them, maintain law and order, protect their natural rights and safeguard their means of sustenance
Adds natural rights and sustenance — a political-theory overlay, not the spare definition.
- C
A number of persons who have been living in a definite territory for a very long time with their own culture, tradition and government
Culture and tradition without sovereignty.
- D
A society permanently living in a definite territory with a central authority, an executive responsible to the central authority and an independent judiciary
Requires an independent judiciary — a liberal constitution, not every State.
Summary. Official key is (a). In political science a State is a permanent community on a definite territory, with an organised government, independent of external control. Extra talk of natural rights or an independent judiciary is not that definition.