The correct answer is C. To satisfy unlimited wants with limited means.
Economics is the study of how people make choices under conditions of scarcity. It is a social science that analyzes the production, distribution, and consumption of goods and services. Economics is concerned with how people make decisions about what to produce, how to produce it, and how to distribute it. It also studies how people make decisions about what to consume and how to save.
Economics is a very important subject because it helps us understand how the world works. It can help us make better decisions about our own lives and about the world around us. Economics can also help us understand the causes of poverty and inequality.
The other options are incorrect because they are not the main focus of economics. Option A is incorrect because economics is not just about ensuring the economic progress of the people. It is also about understanding how people make choices under conditions of scarcity. Option B is incorrect because economics is not just about running a business. It is also about understanding how people make choices about what to produce, how to produce it, and how to distribute it. Option D is incorrect because economics is not just about mobilizing resources and using them. It is also about understanding how people make decisions about what to consume and how to save.
In conclusion, the correct answer is C. To satisfy unlimited wants with limited means.