Identify the following concepts and arrange them in order (of formation first to last):

(A) State-Nation
(B) Community
(C) Nation-state
(D) Nation

Choose the correct answer from the options given below:

(B), (D), (C), (A)

The correct answer is Option (3) → (B), (D), (C), (A)

Explanation:
- **Community (B)**: Communities have existed for centuries, forming the basis of human social organization.
- **Nation (D)**: Nations emerged later in history, often as a result of shared language, culture, or identity.
- **Nation-state (C)**: The concept of a nation-state developed as nations sought political sovereignty over defined territorial boundaries.
- **State-Nation (A)**: This concept emerged as a recognition that the relationship between the state and the nation can vary, with some states encompassing multiple nations or lacking a clear national identity. It is an alternative to the nation-state where various “nations”— be they ethnic, religious, linguistic or indigenous identities— can coexist peacefully and cooperatively