please simply solve and explain these questions to me:

18) Which of the following is false? A) In financial markets, borrowers pay savers by giving them a return on their investment. B) Mutual Funds and ETFs provide the investor a chance to diversify without having to buy shares of numerous corporations. C) All financial intermediaries are banks. D) Private equity firms are financial intermediaries that invests in equities that are not traded on public capital markets. 21) You wish to borrow $2,000 to be repaid in 12 monthly installments of $189.12. The annual interest rate is: (B) 24% B) 8% c) 18% D) 12%. E) 2%