Step 1: Match the theories with the corresponding propounders.
- Volksgeist: Propounded by Savigny, it refers to the spirit of the people influencing law.
- Minimum Morality: Associated with Roscoe Pound, which discusses law's relationship with social morality.
- Command of Sovereign: Associated with John Austin, it is a foundational idea in legal positivism.
- Social Engineering: Propounded by H. L. A. Hart, this is related to the idea of law being a tool for social progress.
Step 2: Conclusion.
The correct matching is (A) (I), (B) (II), (C) (IV), (D) (III).
