17-A firm is evaluating two independent projects utilizing the internal rate of return technique. Project X has an initial investment of 80,000 and cash inflows at the end of each of the next five years of25,000. Project Z has an initial investment of 120,000 and cash inflows at the end of each of the next four years of 40,000. The firm should

a.

accept only X if the cost of capital is at most 15 percent.

b.

accept both if the cost of capital is at most 15 percent.

c.

accept only Z if the cost of capital is at most 15 percent.

d.

none of the above