Correct answer: A. Because production rose but benefits did not reach all regions and farmers equally
Explanation: The direct answer is A: production increased, but the benefits did not reach all regions and farmers equally. The Green Revolution used improved high-yielding seeds, irrigation, fertilizers, pesticides and better farming practices. These methods greatly increased the production of wheat and rice and helped India improve food security. However, the new methods required water, money, machines and purchased inputs, so farmers with better resources and areas with irrigation often gained more. Step by step: technology raised yields; higher output improved food availability; unequal access to land, credit, irrigation and inputs produced unequal benefits. Option A correctly includes both achievement and limitation. Option B is wrong because production generally increased, and benefits were not equal everywhere. Option C is wrong because the Green Revolution was an agricultural and technological change, not a monarchical revolution. Option D is wrong because it was not a slave revolt. A useful memory cue is “more grain, but uneven gain”: food security improved, while regional and class inequalities could also grow.