You were charged interest of $6.31 for purchases (near section 8) why? ( WILL REWARD AND MARK BRAINLIEST !!

a. You paid off your entire balance from the month before

b. You had a balance of $535.07 from the previous month and only paid $450.00 so you didn’t pay off your balance in full

c. You borrowed more than your credit limit and were charged interest in the amount you borrowed over your limit

d. The credit card company paid you interest for the purchases you made on their credit card