Dexcon Technologies, Inc., is evaluating two alternatives to produce its new plastic filament with tribological (le, low friction) properties for creating custom bearings for 3-D printers. The estimates associated with each alternative are shown below. Using a MARR of 8% per year, which alternative has the lower present worth? Method First Cost M&O Cost, per Year Salvage Value Life DDM $-180,000 $-50.000 $2.000 2 years LS $-420,000 $ 20,000 $37,000 4 years The present worth for the DDM method is $ The present worth for the LS method is $ The (Click to select) method is selected