Explanation:

- Production of Surplus Crop: The commercialisation of agriculture encouraged farmers to produce cash crops like cotton and indigo, often leading to surplus production due to market demand.

- Agricultural Stagnation: While some cash crops flourished, essential food grains often saw neglect. This led to stagnant agricultural growth and dependence on market and climatic conditions, causing food scarcity.

- Increase in Income Inequality: Commercialisation benefited wealthy landlords and merchants. Small farmers, however, faced exploitation and debt, exacerbating economic inequalities.

- All of the Above: Each aspect contributed to the complex impact of colonial agricultural policies.

Your Answer is Option: 4 - All of the above.