Identify the correct statement in the context of Circular Flow of Income in a two sector economy:

The correct option is: Firms produce goods and services.

To understand why this statement is correct, let us analyze the circular flow of income in a simple two-sector economy (consisting only of Households and Firms) step-by-step:
1. Role of Households: Households are the owners of the factors of production (land, labor, capital, and enterprise). They supply these factor services to firms to earn income (rent, wages, interest, and profit). Therefore, households supply factor services to firms, not receive them from firms. This makes the first option incorrect. Since there is no Government in a two-sector economy, the fourth option is also incorrect.
2. Role of Firms: Firms hire factor services from households and use them to produce goods and services. Hence, the statement "Firms produce goods and services" is factually and theoretically correct.
3. Saving and Investment: In a basic two-sector circular flow model, households spend their entire income on consumption of goods and services produced by firms, or they may save through financial markets, while firms borrow to invest. The statement "Household invests while firm saves" is not a standard defining characteristic of the two-sector model flow.

Thus, the only correct statement in the given context is that firms produce goods and services.