A firm is evaluating two independent projects utilizing the internal rate of return technique. Project X has an initial investment of 80,000 and 22 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 .accept only Z if the cost of capital is at most 15 percent a 10 none of the above .bo accept only X if the cost of capital is at most 15 percent co accept both if the cost of capital is at most 15 percent do