urgent plesse answer properly

A company has two investment opportunities. Alternative 1 (Alt. 1) pays $12,000 (inflow) two years from now, and $16,000 (inflow) four years from now. Alternative 2 (Alt. 2) pays $4,500 (inflow) at the end of every year for five years. Interest is 8.66% compounded annually. Which is the preferable alternative? Round the values for PV to the nearest cent. Write the Discounted Cash Flow (DCF) for Alt. 1 and Alt. 2. Enter positive values for Alt. 1, and Alt. 2, rounded to the nearest dollar. Alt. 1=9 Alt. 2=$ Choice