What is/are the advantage/advantages of zero tillage in agriculture ? 1. Sowing of wheat is possible without burning the residue of previous crop. 2. Without the need for nursery of rice saplings, direct planting of paddy seeds in the wet soil is possible. 3. Carbon sequestration in the soil is possible. Select the correct answer using the code given below :

Option (d) is correct because zero tillage allows direct sowing of wheat into crop residues (preventing burning), facilitates Direct Seeded Rice (DSR) without nurseries, and enhances carbon sequestration by minimizing soil disturbance. Option (a) is the most tempting wrong choice for candidates who may underestimate the significant role of undisturbed soil as a carbon sink. The core concept tested is Conservation Agriculture and its role in resource efficiency and climate change mitigation.