can you please explain the details how to get the correct answer.

Boulder Corp. desires a WACC of 9.96 percent. The firm has an after-tax cost of debt of 4.81 percent and a cost of equity of 15.1 percent. What should be the weights for debt and equity financing, respectively to achieve its targeted WACC if the applicable tax-rate is 24% ? 50\%; 50\% 62%;38% 69%;31% Not enough information 46%;54%