Peter's Audio Shop. needs to purchase equipment for its 2,000 drive-ins nationwide. The total cost of the equipment is $2 million. It is estimated that the after-tax cash inflows from the project will be $210,000 annually in perpetuity. Peter has a market value debt-to- assets ratio of 40%. The firm's cost of equity is 13% and its pre-tax cost of debt is 8%. The tax rate is 34%. Assume the project is of similar risk to the firm's existing operations. What is Peter's WACC? Select one: O a. 8.95% O b. 9.91% O c. None of the suggested answers O d. 9.05% O e. 8.73%