Based on the corporate valuation model, Morgan Inc.'s total corporate value is $200 million. The balance sheet shows $90 million of notes payable, $30 million of long-term debt, $40 million of preferred stock, and $100 million of common equity. The company has 10 million shares of stock outstanding. What is the best estimate of the stock's price per share?

a. $3.88

b. $3.36

c. $3.80

d. $4.00

e. $4.12