Determine the ERR (External rate of return) of the cash flows if external rate (e) is given as %19.

Year Cash Flow

0 -3000

1 2000

2 4000

3 -1000

4 3000

5 4000

6 -5000

7 9000

Select one:

a.

0.2988

b.

0.2638

c.

0.2565

d.

0.3073

e.

0.2783

f.

0.3491