Step 1: Concept
This question deals with sociological concepts and their respective classification categories (social, economic, political, and religious).
Step 2: Meaning
We must connect each major social classification system (caste, class, nationality, and sect) to its defining category based on traditional sociological definitions.
Step 3: Analysis
[leftmargin=20pt, itemsep=3pt, topsep=4pt]
• A. Caste – IV. Social Category: Caste is a rigid, birth-ascribed hierarchical social grouping.
• B. Class – III. Economic Category: Class is determined by financial resources, wealth, income, and occupation.
• C. Nationality – I. Political Category: Nationality defines political affiliation, legal status, and citizenship of a nation-state.
• D. Sect – II. Religious Category: A sect represents a smaller, distinct division within a major religion.
Step 4: Conclusion
Matching A-IV, B-III, C-I, D-II leads directly to option (D).
Final Answer: (D)