Allister Company uses both debt capital and equity capital to fund new projects. The before-tax cost of debt capital is 12 percent. The cost of equity capital is 10 percent. Allister's effective tax rate is 40 percent. For each of the following cases, calculate the before-tax weighted average cost of capital and the after-tax weighted average cost of capital. The percentage ratio of debt funding to equity funding is

a. \(0 / 100\).

b. \(25 / 75\).

c. \(50 / 50\).

d. \(75 / 25\).

e. \(100 / 0\).