The social and economic structure of some princely states in Karnataka was characterized by:

The correct answer is: A) Feudal relationships.

The social and economic structure of some princely states in Karnataka was characterized by feudal relationships. This means that the land was owned by a small number of wealthy landowners, who were known as the jagirdars. The jagirdars would then rent out the land to peasants, who would work the land in exchange for a share of the crops. This system of land ownership led to a great deal of inequality, as the jagirdars were able to accumulate a great deal of wealth, while the peasants were often very poor.

The other options are incorrect for the following reasons:

• Option B: Centralized administration is not a characteristic of feudal relationships. In a feudal system, there is a great deal of decentralization, as the jagirdars have a great deal of autonomy over their own lands.
• Option C: Democratic governance is not a characteristic of feudal relationships. In a feudal system, the peasants have very little say in how they are governed.
• Option D: Industrial development is not a characteristic of feudal relationships. In a feudal system, the economy is based on agriculture, and there is very little industry.