Explanation:

- Black soil is also known as regur soil. It is rich in minerals like calcium and potassium.

- Black soil is particularly suitable for the cultivation of cotton due to its moisture-retention capabilities and nutrient richness.

- Option: 1 - Cotton crop: Black soil is ideal for cotton production.

- Option: 2 - Paddy crop: Paddy requires clayey and loamy soils that can hold water. Black soil is not as water-retentive for paddy cultivation.

- Option: 3 - Sugarcane crop: Requires a more alluvial soil with better drainage properties.

- Option: 4 - Wheat crop: Thrives better in drained loamy soil rather than black soil.