7. Which is the right formula for B7? a) =NPV(B6,B2:B5)/-B2 b) =NPV(B6,B3:B5)/-B2 c) =(NPV(B6,B3:B5)+B2)/B2+1 d) =NPV(B6,B3:B5)/B2 e) =PI(B6,B2:B5) A 1 Year 2 0 3 1 4 2 5 3 6 WACC 7 Profitability Index O UNAWN B Cash Flows (60,000) 20,000 25,000 30,000 12% ? A B