Which is the driver of increasing agricultural productivity of small and marginal farmers in India?

All of the above are drivers of increasing agricultural productivity of small and marginal farmers in India:   (A)   Agricultural Research and Investment: Investments in agricultural research, including the development of improved crop varieties, pest and disease management strategies, and sustainable agricultural practices, can contribute to higher productivity. (B)   Access to Modern Inputs: Small and marginal farmers can enhance their productivity by gaining access to modern inputs such as high-quality seeds, fertilizers, pesticides, and machinery. (C)   Appropriate Technology with Innovative Marketing System: The adoption of appropriate agricultural technologies and innovative marketing systems can help farmers improve their crop yields and market their products effectively.