The following table contains information about four potential investment projects that Castle Corporation is considering. Payback Period 3.3 Project B D Required Investment $ 840,000 $1,090,000 $1,340,000 $1,840,000 Project Life 5 4 4 5 Acctg ROR 34.500 20.259 18.758 19.95 Profitability Index 1.44 2.04 1.55 1.50 NPV $ 408,250 $ 554,062 $ 219,170 $ 248,508 4.5 4.2 2.8 Required: 1. Rank the four projects in order of preference under each method indicated by the headers: Profitability Accounting Rate of Return Payback Period Net Present Value Index 1st proferred 2nd preferred 3rd preferred 4th preferred