1. Orpheum Productions in Nevada is considering three mutually exclusive alternatives for lighting enhancements to one of its recording studios. The cash flow details, in thousands of dollars, for these enhancements are shown in the chart below. MARR is 10%/vr. a. Based on an internal rate of return analysis, which alternative (if any) should be implemented? Based on an external rate of return analysis, which alternative (if any) should be implemented? b. Sliding End of Year Reflected Beam Light Bar $6,000 $2,000 $2,000 $2,000 $2,000 $2,000 $2,000 Spots $20,000 $0 $2,300 $4,600 $6,900 $9,200 $11,500 0 $14,000 $3,500 $3,500 $3,500 $3,500 $3,500 $3,500