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7. The financial data for three mutually exclusive alternatives for a project is as shown in the table below. For an interest rate of 8% determine; First cost O & M cost/year $10,000 $4,000 $1,900 Benefit/year Salvage value Life in years 45,000 $25,000 $20,000 $18,000$13,000 $9,000 $3,000 $6,000 $4,600 The equivalent annual worth of alternative A (5 points) a. (5 points) b. The equivalent annual worth of alternative B (5 points) c. The equivalent annual worth of alternative C (4 points) d. The best alternative that you will recommend