Calculate WACC of the following company. The tax rate is $20\%.(20)$

A$.$ Company A has $10,000$ bonds outstanding with a $6\%$ annual coupon rate, $8$ years to maturity, a $1,000,000$ Won face value, and a $1,100,000$ Won market price.

B$.$ The company's $200,000$ shares of preferred stock pay a $1,500$ Won annual dividend, and sell for $15,000$ Won per share.

C$.$ The company's $1,000,000$ shares of common stock are traded at $12,000$ Won per share and have a beta of $1\mathrm{.}5.$ The risk free rate is $4\%,$ and the market return is $12\%.$