7. (2 points) A profit-maximizing firm is considering five different investment projects. The cost and expected rate of returm for each of these projects (as estimated by the firm) is found in this table How much will the firm spend on investment when the interest rate is 6%? A) $6,000 B) $16,000 C) $26,000 D) $36,000 B) $46,000 Project Cost 2,000 $4,000 $8,000 16,000 $32,000 Expected rate of return 990 3% 7% 12% 5%