Of the various capital structures below, which do you think is the most optimal? Why?

a. Debt = 40%; Equity = 60%; EPS= $2.95; Stock price = $26.50.

b. Debt = 50%; Equity = 50%; EPS= $3.05; Stock price = $28.90

c.Debt = 60%; Equity = 40%; EPS= $3.18; Stock price = $31.20

d. Debt = 80%; Equity = 20%; EPS= $3.42; Stock price = $30.40

e. Debt = 70%; Equity = 30%; EPS= $3.31; Stock price = $30.00

d.