An annuity-due makes annual payments for 20 years. The first payment is $100. The next 9 payments increase by 10% from the prior payment. After the 10th payment, each payment decreases by 10% from the prior payment. The annual effective interest rate is 4%. Find the present value of the annuity at the time of the first payment. Please show work

(a) 2078.99 (b) 2118.01 (c) 2164.98 (d) 2193.24 (e) 2516.16