Determine the amount of money in a savings account at the end of 3 years, given an initial deposit of $4,000 and a 4 percent annual interest rate when interest is compounded: Use Appendix A for an approximate answer, but calculate your final answer using the formula and financial calculator methods. (Do not round intermediate calculations. Round your final answers to 2 decimal places.)

a, annually

b. semiannually

c. quarterly