Jay Lo Enterprises finances its assets with 60 percent debt, 10 percent preferred stock, and 30 percent common stock. Jay Lo's after-tax cost of debt is 5 percent, its cost of preferred stock is 8 percent, and its cost of common equity financing is 12 percent. Given these conditions, what is Jay Lo's WACC? O 7.40% O 7.90% O 9.25% O 8.33%