The correct option is D Sprinkler system
The particles of sand are larger in size and there is space between the particles. Hence, sandy soil has high percolation rate and low water retaining capacity. The soil in the farmer's field is supposed to be sandy in nature. Moreover, the land is uneven. Hence, sprinkler system would be the best suited for his field. The sprinkler system consists of a network of perpendicular pipes, which have rotating nozzles on the top. The water coming through the main pipe flows under pressure into the perpendicular pipes and escapes through the rotating nozzles and gets sprinkled over the crop plants.