Explanation
- A
2 4 1 3
Option (a) pairs Golden Revolution with horticulture and honey (2), Grey Revolution with fertilizers (4), Yellow Revolution with oil seed production (1), and Black Revolution with petroleum production (3). This specific matching correctly aligns every agricultural and industrial revolution with its officially designated product sector. Because all four pairs are accurately matched according to Indian economic history, this option is the correct answer.
- B
2 3 4 1
Option (b) incorrectly pairs the Grey Revolution with petroleum production and the Yellow Revolution with fertilizers. These misalignments violate standard economic terminology used in Indian agricultural planning.
- C
1 2 3 4
Option (c) incorrectly assigns oil seed production to the Golden Revolution and horticulture to the Grey Revolution. Such crossed pairings lead to factual errors regarding national production milestones.
- D
4 2 1 3
Option (d) incorrectly links the Golden Revolution to fertilizers and Grey Revolution to horticulture and honey. These scrambled combinations fail to match the standard definitions established for agricultural revolutions in India.
Summary. Official key is (a) with the sequence 2, 4, 1, 3. The Golden Revolution relates to horticulture and honey production, while the Grey Revolution is linked to fertilizers. Furthermore, the Yellow Revolution stands for oil seed production, and the Black Revolution corresponds to petroleum production. Recognizing these specific sector associations is essential for solving matching questions in agricultural economics. Therefore, option (a) is the only valid choice.
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