A credit card account s due date is June 9, and the outstanding balance on that day is $460. On that same day, the cardholder sends in a payment of $75 and uses the card for a $20 purchase. The card is used again on June 13th and June 24th for purchases of $154 and $54, respectively. If the credit card interest rate on the average daily balance is 2.5% per month, what is the finance charge for the month? Round your answer to the nearest cent.

a. $18.24

b. $24.18

c. $34.14

d. $14.14