MV Corporation has debt with a market value of $$200$ million, common equity with a book value of $$100$ million, and preferred stock with a book value of $$20$ million. Its common equity trades at $$30$ per share, and the firm has $5$ million common shares outstanding. In addition, it has $1$ million preferred shares outstanding which trade at $$25$ per share. When calculating WACC, what weight should MV Corporation for its debt $(W_d)?$

a$)W_d=62\mathrm{.}50\%$

b$)W_d=54\mathrm{.}05\%$

c$)W_d=61\mathrm{.}54\%$

d$)W_d=53\mathrm{.}33\%$