Below is a table for the present value of $1 at compound interest.

Year	6%	10%	12%
1	0.943	0.909	0.893
2	0.890	0.826	0.797
3	0.840	0.751	0.712
4	0.792	0.683	0.636
5	0.747	0.621	0.567

Below is a table for the present value of an annuity of $1 at compound interest.

Year	6%	10%	12%
1	0.943	0.909	0.893
2	1.833	1.736	1.690
3	2.673	2.487	2.402
4	3.465	3.170	3.037
5	4.212	3.791	3.605

Using the tables above, what would be the internal rate of return of an investment that required an investment of $227,460 and would generate an annual cash inflow of $60,000 for the next 5 years?

a.6%

b.10%

c.12%

d.cannot be determined from the data given