The correct answer is D. All of the above.
Sprinklers and drip irrigation are methods of irrigation that use less water than traditional methods, such as flood irrigation. This is because they deliver water directly to the roots of the plants, where it is most needed. This can lead to significant water savings, especially in areas where water is scarce.
In addition to water savings, sprinklers and drip irrigation can also improve crop yields. This is because they provide a more consistent supply of water to the plants, which can help them to grow more vigorously. They can also help to reduce the risk of crop damage from pests and diseases.
Finally, sprinklers and drip irrigation can also improve fertilizer efficiency. This is because they deliver fertilizer directly to the roots of the plants, where it is most effective. This can lead to reduced fertilizer use, which can save money and reduce environmental pollution.
Overall, the use of sprinklers and drip irrigation in Telangana is promoted for a number of reasons, including water conservation, improved crop yields, and fertilizer efficiency.