Which crop grows best on black soil?

Correct option is A

Cotton grows best on black soil.
 Black soil is a type of soil that is rich in organic matter and nutrients, and it has a good water-holding capacity. These properties make black soil ideal for growing cotton, which is a heavy feeder and requires a lot of water.
 The black soils are generally clayey, deep and impermeable. They swell and become sticky when wet and shrink when dried.
 The states of Maharashtra, Gujarat, Madhya Pradesh, Andhra Pradesh, and Telangana are the major producers of cotton in India.