4 points am is evaluating two independent projects utilizing the internal rate of return technique. Project X has an initial investment of 580,000 and cash inflow at the end of next five years of $25.000. Project Z has a initial investment of S120,000 and cash inflows at the end of each of the next four years of $40,000. The firm should accept both if the cost of capital is at most 15 percent accept only Z if the cost of capital is at most 15 percent accept only X if the cost of capital is at most 15 percent none of the above