You are given the data below.$$ Calculate the Weighted Average Cost of Capital $($WACC$)$ for this company using $($a$)$ Book Value Weights, $($b$)$ Market Value Weights, and $($c$)$ Target Value Weights.$$ Which weighting scheme is most appropriate?

Book Value Debt: $$100$MM

Book Value Preffered: $30$MM

Book Value Equity: $100$MM

Target Weight Debt: $40\%$

Target Weight Preferred: $10\%$

Target Weight Equity: $50\%$

Short Term Debt:

Face Value: $20$MM

Market Value: $20$MM

Rate: $5\%$

Long Term Debt:

Face Value: $80$MM

Bond Price: $960$

Rate: $14\%$

Preferred:

Coupon: $8\%$

Face Value: $30$

Price: $37$

# of shares: $1$MM

Equity:

risk free rate: $3\%$

market risk premium: $5\%$

Beta: $1\mathrm{.}2$

Price: $$36$

# of shares $5$MM

Tax Rate: $35\%$