Which of the following options is/are related to increasing food production?

All of the above

The correct answer is Option (4) -All of the above

(a) Agrochemical based agriculture: This approach involves the use of agrochemicals such as fertilizers and pesticides to enhance crop growth and control pests. It has been one of the conventional methods used to increase food production, but it may have negative environmental impacts and can be expensive for farmers in the developing world.

(b) Organic agriculture: Organic agriculture focuses on using natural and sustainable methods to grow crops without the use of synthetic fertilizers and pesticides. While it may promote environmental sustainability and healthier food, its yield may not be as high as agrochemical-based agriculture.

(c) Genetically engineered crop-based agriculture: This approach involves the use of genetically modified organisms (GMOs) to improve crop characteristics, such as resistance to pests, diseases, or environmental stress. GMOs are created by introducing specific genes into the plant's genome to confer desired traits. This technology aims to enhance crop productivity and address various agricultural challenges.

(d) All of the above: This is the correct option.The statement "All of the above" means that all the options mentioned (agrochemical-based agriculture, organic agriculture, and genetically engineered crop-based agriculture) are related to increasing food production. These different approaches represent diverse strategies used in the field of agriculture to meet the increasing demands for food due to the growing human population.

In summary, all three options (a, b, and c) have been explored to enhance food production, but each comes with its own set of advantages, disadvantages, and considerations in terms of sustainability, environmental impact, and economic feasibility.