JB Entertainment, Inc.'s capital structure is as follows. < Source Long-term debt < Preferred stock < Book Value $4,800,000 $950,000 $6,250,000 Market Value < $5,300,000 After-tax Cost 8.40% $980,000 13.50% Common stock < $9,500,000 15.50% a. Calculate JBE's weighted-average-cost-of-capital using book value weights. < < b. Calculate JBE's weighted-average-cost-of-capital using market value weights. c. Compare your answers in parts A and B. Explain the differences. < T. .