Step 1: Understanding the Concept:
Different agricultural and soil conservation events occurred in specific years.
We need to match each event with its year.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the historical events.
Step 3: Detailed Explanation:
1920: Royal Commission on Agriculture (A-I).
1942: Bombay Land Development Act (B-IV).
1953: Central Soil Conservation Board (C-II).
1972: ICRISAT established (D-III).
Thus, A-I, B-IV, C-II, D-III is the correct matching.
Step 4: Final Answer:
The correct matching is A-I, B-IV, C-II, D-III.
Hence, the correct option is (A).