10-19 ADJUSTING COST OF CAPITAL FOR RISK Ziege Systems is considering the following independent projects for the coming year: Ziege's WACC is 10%, but it adjusts for risk by adding 2% to the WACC for high-risk projects and subtracting 2% for low-risk projects. a. Which projects should Ziege accept if it faces no capital constraints? b. If Ziege can only invest a total of $13 million, which projects should it accept, and what would be the dollar size of its capital budget? c. Suppose Ziege can raise additional funds beyond the $13 million, but each new increment (or partial increment) of $5 million of new capital will cause the WACC to increase by 1%. Assuming that Ziege uses the same method of risk adjustment, which projects should it now accept, and what would be the dollar size of its capital budget