Sauer Milk Inc. wants to determine the minimum cost of capital point for the firm. Assume it is considering the following financial plans: Cost (aftertax) Weights 6.0% 12.0 16.0 25% 15 60 6.2% 12.2 17.0 35% 15 50 Plan A Debt Preferred stock Common equity Plan B Debt Preferred stock Common equity Planc Debt Preferred stock Common equity Plan D Debt Preferred stock Common equity 7.0% 11.7 7.6 45% 15 40 7.0% 12.6 9.8 55% 15 30 a-1. Compute the weighted average cost for four plans. (Do not round intermediate calculations. Input your answers as a percent rounded to 2 decimal places.) Plan A Plan B Weighted Cost % % Plan C Plan D a-2. Which of the four plans has the lowest weighted average cost of capital? O Plan A O Plan B O Plan C O Plan D