Explanation: During the reign of Alauddin Khalji (1296-1316), the Delhi Sultanate underwent significant administrative and economic reforms. One of the most notable changes was the centralization of the taxation system, which aimed to consolidate the Sultan's power and increase the state's revenue. The primary taxes collected under this system were on cultivation, cattle, and houses.
1. **Cultivation Tax (Kharaj):** This was the most significant tax collected by the Sultanate. It was levied on agricultural land and was based on the produce of the land. The tax was calculated as a percentage of the crop yield, and it was collected in kind (i.e., in the form of the actual produce). The cultivation tax was crucial for the Sultanate's economy as it provided a steady and substantial source of revenue.
2. **Cattle Tax (Gauz):** Cattle were an essential part of the agricultural economy in medieval India. The tax on cattle was levied on the number of cattle owned by individuals. This tax was important because cattle were not only used for agricultural purposes but also for transportation and as a source of milk and other dairy products. The cattle tax helped the Sultanate to control the wealth of the rural population and to ensure that the agricultural economy remained stable.
3. **House Tax (Jizya):** This tax was levied on houses and was based on the value of the property. The house tax was collected from both urban and rural areas and was an important source of revenue for the Sultanate. It helped to ensure that the urban centers remained prosperous and that the rural population was taxed fairly based on their property holdings.
The centralization of the taxation system under Alauddin Khalji was a significant step towards consolidating the power of the Sultanate. By directly collecting taxes from the local chieftains and the rural population, the Sultanate was able to reduce the influence of local rulers and to increase its control over the economy. This system of taxation was crucial for the economic and military strength of the Sultanate, as it provided a steady and substantial source of revenue.
The other forms of taxes mentioned in the incorrect options, such as taxes on jewels, ornaments, clothes, and horses, were not the primary focus of the Sultanate's taxation system. While these taxes might have been collected in some form, they were not as significant as the taxes on cultivation, cattle, and houses.
In conclusion, the correct answer is (C) On cultivation, on cattle, and on houses, as these were the primary forms of taxation under Alauddin Khalji's rule, which were essential for the economic stability and military strength of the Delhi Sultanate.