Langston Labs has an overall (composite) WACC of 10%, which reflects the cost of capital for its average asset. Its assets vary widely in risk, and Langston evaluates low-risk projects with a WACC of 8%, average-risk projects at 10%, and high-risk projects at 12%. The company is considering the following projects:Project Risk Expected ReturnA High 15%B Average 12%C High 11%D Low 9%E Low 6%Which set of projects would maximize shareholder wealth?