Answer:
The correct answer is 4) Decreases, increase, supply
Explanation:
Goverment spending causes the interest rate to rise, and a higher interest rate means less private spending.
Government has three sources of income: issuing debt, printing money, and collecting taxes. When the goverment increases spending, people expect taxes to increase as well, because it is usually the most important financial source for the goverment.
The more income is saved, the more of it can be saved. An economy without savings cannot invest because it would use all of its income to pay for expenses. If people begin to save more, for example, in the bank, the bank will have more deposits available to loan to firms, that will use those loans to invest.