You receive a job offer that includes the following "signing bonus." In addition to your regular salary, your potential employer offers to pay you an additional $1,000 the end of your first year, $2,000 at the end of your second year, and $5,000 per year at the end of your third, fourth, and fifth year. Assume that you plan to stay with this employer for at least five years. If the discount rate is 7.5%, compounded annually, what is the value of this signing bonus? a. $6, 685.70 b. 13, 912.49 c. $17, 957.66 d. $18,000.00