On-line Text Co. has four new text publishing products that it is considering. The projects are of equal risk with a beta of 1.6. The risk-free rate is 4.2 percent and the market rate is expected to be 12.3 percent. The projects and their expected internal rates of return are: W = 14.4 percent; X = 18 percent, Y = 16.4 percent; and Z = 17.2 percent. Which projects should be accepted? Justify your acceptance decision.