how to calculate this question?

Use the information for the question below. You are in the process of purchasing a new automobile that will cost you $27,500. The dealership is offering you either a $2,500 rebate (applied toward the purchase price) or 1.9% financing for 48 months (with payments made at the end of the month). You have been pre- approved for an auto loan through your local credit union at an interest rate of 6.5% for 48 months. 20. If you take the $2,500 rebate and finance your new car through your credit union your monthly payments will be closest to: A. $520 B. $573 C. $593 D. $799