The interest rate will most likely rise when: (1) households decide to delay consumption, causing the loanable funds accessible for business investments to raise. (2) investors become more optimistic into relation with the profitability of investment. (3) households decide that times are secure and reduce the liquidity of their assets. (4) households decide to save more due to retirement plans. (5) the stock market falls since speculators fear a depression.
How can I solve my Economics problem? Please suggest me the correct answer.