The crop is subtropical in nature. A hard frost is injurious to it. It requires at least 210 frost-free days and 50 to 100 centimeters of rainfall for its growth. A light well-drained soil capable of retaining moisture is ideally suited for the cultivation of the crop.” Which one of the following is that crop?

Cotton is the correct answer because it aligns with the given characteristics.

Cotton thrives in a variety of soils, but deep, fertile soil with good water-holding capacity and internal drainage is ideal.

Cotton requires at least 180-200 frost-free days. A hard frost is indeed injurious to the crop.

The optimal temperature for germination is 20-30°C. Germination is delayed below 18°C.

Cotton-growing regions in India experience varying climates, including high temperatures during sowing and low temperatures with occasional frost during picking. Rainfall typically ranges from 300-700 mm in the northern zone.

Hence, option (a) is the correct answer.