Answer:
D. 0% interest for 1 year and 12% interest after that
Explanation:
Since you are purchasing a new stereo and will be paying it off within a year, it will be best to choose a credit card that charges the lowest interest rate in the first year. This will be the one with 0% interest rate for the first year; choice D. After you use it , fully pay off the amount and you can cancel your credit card so you don't get charged the 12% interest rate from year 2 going forward.