Statements A, B and D are correct: IPM reduces chemical dependence, conservation tillage with organic matter improves soils and diversification and rotation reduce pests and risks. Statement C is incorrect because sustainable agriculture does not always mean zero external inputs; rather, it emphasises judicious, efficient and environmentally sound use. Thus, the right combination is A, B and D only.
Option A:
Option A is incomplete as it omits D, which correctly notes the role of diversification and rotation in sustainable systems. Without D, the picture of sustainable agriculture is partial.
Option B:
Option B is correct because it assembles all three valid statements and excludes C, which presents an extreme and inaccurate view of sustainability. It reflects the balanced approach promoted in the syllabus.
Option C:
Option C is incorrect since it accepts C as correct along with B and D. Including the idea that any external input is incompatible with sustainability misrepresents agricultural science.
Option D:
Option D is incorrect because it groups A with C and D and leaves out B. While A and D are true, accepting C and excluding B on soil health makes the combination logically inconsistent.
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