Explanation:

- The Deccan Plateau's black soil, also known as regur soil, is very fertile and retains moisture well.

- Option 1: Jute - Jute requires alluvial soil and plain land, which is not the primary characteristic of the Deccan Plateau.

- Option 2: Maize - While maize can grow in a variety of soils, black soil isn't specifically optimum for it compared to others.

- Option 3: Textile - Textile is not an agricultural crop; it's a product made from crops like cotton, but not grown in soil.

- Option 4: Cotton - Cotton thrives in black soil due to its moisture-retaining capacity and climate compatibility on the Deccan Plateau.