Your balance from the previous month is $500. On the 4th day of the billing cycle, you charged $80. On the 9th day of the billing cycle, you charged $25. On the 15th day of the billing cycle, your account was credited with a payment of $150. On the 20th day of the billing cycle, you charged $50. On the 28th day of the billing cycle, another payment was credited to your account for $200. Your billing cycle was 30 days in length and you pay 12.9% APR. Find the Finance Charges for this scenario

. A. $508.67

B. $5.40

C. $5.50

D. $5.39