What is Unida's unlevered cost of capital, after-tax debt cost of capital, and weighted average cost of capital? Round answers to two decimal places, please.
a) 8.45%, 4.20%, 6.75%
b) 10.20%, 3.75%, 7.50%
c) 9.75%, 3.50%, 7.00%
d) 7.90%, 5.00%, 6.00%