If investing $10,000 in one of the opportunities

1.)If investing $10,000 in one of the opportunities below with the following incomes, which investment offers the highest return?
Investment Year 1 Year 2 Year 3 Year 4 Year 5
Real Estate $1,300 1,300 1,300 1,300 9,000
Bond $1,000 1,000 1,000 1,000 11,000
Zero Coupon 0 0 0 0 18,000

2.)Calculate the present value of the incomes given below, assuming interest rates of 8% and 20%.

Year Income
1.) $3,000
2.) 4,000
3.) 6,000
4.) 1,000