Which of the following statements is most correct? a. If an investment pays 10 percent interest compounded annually, its effective rate will also be 10 percent. b. All the statements are correct. c. A 5-year $100 annuity due will have a higher present value than a 5-year $100 ordinary annuity. d. A 15-year mortgage will have larger monthly payments than a 30-year mortgage of the same amount and same interest rate