Compare the alternatives C and D on the basis of a present worth analysis using an interest rate of 15% per year and a study period of 10 years. C $-50,000 $-8,000 D $-21,000 $-9,000 Alternative First Cost AOC. per Year Annual Increase in Operating Cost, per Year Salvage Value Life, Years $-1,500 $ 200 $14,000 10 $1,500 5 The present worth of alternative C is $ and that of alternative D is $ (Click to select) offers the lower present worth