May someone show me how you got the formulas for the calculator and show solutions. will thumbs up

Iture Value of an Annuity for Various Compounding Periods nd the future values of the following ordinary annuities. Round your answer to the nearest cent. $ your answer to the nearest cent. $ c. The annuities described in parts a and b have the same total amount of money paid into them during the 4-year period, and both earest at the same nominal rate, yet the annuity in part b earns more than the one in part a over the 4 years. Why does this occur? -Select- The nominal deposits into the annuity in part (b) are greater than the nominal deposits into the annuity in part (a). The annuity in part (a) is compounded less frequently; therefore, more interest is earned on interest. The annuity in part (a) is compounded more frequently; therefore, more interest is earned on interest. The annuity in part (b) is compounded less frequently; therefore, more interest is earned on interest. The annuity in part (b) is compounded more frequently; therefore, more interest is earned on interest