Your Credit Card Had Balances of $800 for 13 Days,$600

Multiple Choice

Your credit card had balances of $800 for 13 days,$600 for 5 days,and $650 for 12 days.Assume an annual interest rate of 18 percent,30-day billing cycle and 20-day grace period.How much is the interest charge using the average daily balance method,if the credit card gets paid off five days after the statement due date?

A) $1.74
B) $8.71
C) $12.20
D) $19.17