The following table contains information about four potential investment projects that Castle Corporation is considering. Project A B Required Investment $ 680,000 $ 930,000 $1,180,000 $1,680,000 Project Life 5 4 Acctg ROR 22.50% 18.25% 10.25% 13.95% Payback Period 3.3 3.7 3.4 3.6 NPV $ 244, 250 $ 230,062 $ 217,170 $ 246,508 Profitabilit Index 1.41 2.20 1.39 1.34 4 5 D Required: 1. Rank the four projects in order of preference under each method indicated by the headers: Accounting Rate of Return Payback Period Net Present Value Profitability Index 1st preferred 2nd preferred 3rd preferred 4th preferred 2. Which method is the best for evaluating the investments