Compute the NPV of each of the following cash outflows: A. $22,000 paid at the end of 4 years. The discount rate is 5 years. B. $2,000 paid at the end of 3 years and $5,000 paid at the end of 5 years. The discount rate is 8 percent. c. $7,000 paid annually at the end of each of the next four years. The discount rate is 4 percent. D. $1,500 paid annually at the end of each of the next 4 years and $3,000 paid at the end of the fifth year. The discount rate is 6 percent.