answer with graph

Hardhat MFG. Co.'s capital accounts consist of 35% equity, 15% preferred stock and 50% debt. The firm can issue up to $60,000 in bonds at an after tax cost of 10%, beyond that, the cost of debt jumps to 12%. It can issue an unlimited amount of preferred stock at a cost of 12%. It has $90,000 of internally generated equity available for investment. The required rate of return on Hardhat common stock is 15%. Up to $75,000 of new equity can be issued at a cost of 16%. Above this amount, new equity will cost 18%. Hardhat is evaluating the following projects: Which of the four projects above should Hardhat take on