The correct answer is option 3. The package technology that brought about the Green Revolution mainly consisted of irrigation, bio-chemical fertilizers, and high-yield varieties of seeds.
Option 1, involving man-power, mechanical cultivators, and electricity, does not accurately describe the package technology of the Green Revolution. While electricity may have been used in some aspects of farming, it was not a major component of the Green Revolution.
Option 2, involving changes in crop pattern, industrialization, and chemical fertilizers, also does not fully capture the package technology of the Green Revolution. While chemical fertilizers played a role in increasing crop production, they were not the only element in the package.
Option 4, involving electricity, irrigation, and the introduction of DIY farming, is not an accurate representation of the package technology of the Green Revolution. DIY farming is not a recognized component of the Green Revolution.
In conclusion, option 3, which includes irrigation, bio-chemical fertilizers, and high-yield seed varieties, best describes the package technology of the Green Revolution.