Weston Systems is considering the following independent projects for the coming year: Required Investment Expected Rate of Return Project Risk Y $8 million 7 million 2 million 14.0% 10.5% 8.0% High Average Low Z Weston's WACC is 11 percent, but it adjusts for risk by adding 2 percent to the WACC for high-risk projects and subtracting 2 percent for low-risk projects. Which project(s) should Weston accept assuming it faces no capital constraints? O a. Projects X and Y b. Project X only c. Project Y only d. Projects X and Z O e. Project Z only