For the cash flows shown, the equivalent annual worth in periods 1 through 5 at an interest

Question:

For the cash flows shown, the equivalent annual worth in periods 1 through 5 at an interest rate of 10% per year is closest to:
Annual Period Amount, $
0 ......... 1000
1 ......... 1000
2 ......... 1000
3 ......... 1000
4 ......... 1000
5 ......... 1500
(a) $1120
(b) $1240
(c) $1350
(d) $1490