The correct answer is option 'A', i.e., Rs 22,303 crore. The Union Cabinet approved the allocation amount for the Nutrient-Based Subsidy (NBS) rates for the Rabi Season 2023-24 on October 25, 2023. Let us understand this in detail.

Introduction to Nutrient-Based Subsidy (NBS)
The Nutrient-Based Subsidy (NBS) is a scheme implemented by the Government of India to provide subsidies to farmers on various fertilizers based on their nutrient content. The objective is to promote balanced use of fertilizers and improve soil health.

Details of the Allocation Amount
The Union Cabinet approved an allocation amount of Rs 22,303 crore for the Nutrient-Based Subsidy (NBS) rates for the Rabi Season 2023-24. This allocation is aimed at ensuring the availability of fertilizers to farmers at affordable prices and encouraging the balanced use of fertilizers to enhance agricultural productivity.

Importance of the Allocation
The allocation of Rs 22,303 crore for the Nutrient-Based Subsidy (NBS) rates for the Rabi Season 2023-24 is significant for several reasons:

1. Affordable Fertilizers: The subsidy ensures that farmers can access fertilizers at subsidized rates, reducing their input costs and making fertilizers more affordable for them.

2. Balanced Use of Fertilizers: The NBS scheme encourages farmers to use fertilizers in a balanced manner by providing subsidies based on the nutrient content of the fertilizers. This promotes sustainable agricultural practices and helps maintain soil health.

3. Agricultural Productivity: The availability of subsidized fertilizers helps improve agricultural productivity by providing essential nutrients to the soil, leading to increased crop yields.

4. Farmer Welfare: The allocation of funds for the NBS rates demonstrates the government's commitment to the welfare of farmers by supporting them with affordable inputs for their agricultural activities.

Conclusion
The allocation of Rs 22,303 crore for the Nutrient-Based Subsidy (NBS) rates for the Rabi Season 2023-24 is a significant step towards promoting balanced use of fertilizers and enhancing agricultural productivity. This allocation will benefit farmers by providing them with affordable fertilizers and contribute to the overall development of the agricultural sector in India.