A corporation's balance sheet shows SAR 400 million in debt, SAR 50 million in preferred stock, and SAR 550 million in total common equity.

The firm's tax rate 21%

Rate on Debt (Rd) Before Tax 9%

Rate on Preferred Stock (Rps) 7%

Rate on Common Stock (Rcs) 12%

What is its Weighed Average Cost of Capital (WACC)? (SAR is the Saudi Arabia Reyal)

		6%
		7%
		8.8%
		9.8%