Redwood Corporation ls considering two altermative investment proposals with the following data: Proposal X $840.000 Proposal Y $506,000 9 years 9 years Useful life Estimated annual net 68,000 $135,000 $78,000 Straight- line 17% cash inflows for 9 years Residual value Depreciation method Straight-line 13% Required rate of retum How long is the payback period for Proposal X OA. 622 years OB. 10.77 years OC. 7.67 years OD. 12.73 years acBook Air 4)12 4) F1ll il fs F10 F9 F7