Given below are four jumbled sentences. Select the option that gives their correct order.

1. Interest rates, in turn, are a crucial determinant of how much firms and consumers want to spend.
2. Conversely, a consumer may be lured into buying a new home if interest rates are low and mortgage payments are therefore more affordable.
3. A firm faced with high-interest rates may decide to postpone building a new factory because the cost of borrowing is so high.
4. The Federal Reserve System strongly influences the size and growth rate of the money stock, and thus the level of interest rates in the economy.