Definition: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Input: [header] How to choose credit cards [title] Check the interest rate. [step] Of all the different things that can impact your credit card decision, the interest rate on the card is probably the most important factor. What makes interest so important? The interest rate your card charges will make a huge difference in the amount of money you end up paying over the long term. <sep> (A) [substeps] There are different types of credit cards. Avoid buying an electronic card such as a motorola, miu, billbil, or continental enterprise card. (B) It is a good idea to check your credit card data carefully as you plan out your purchase of a credit card. You will also want to avoid renewing the debt that you won when you purchased the card. (C) If you carry a balance from one month to the next, a card with a low, single digit interest rate is best. The impact interest has on what you spend is simple math. (D) The interest rate is made much more profitable simply by knowing how much interest it will make you. [substeps] Interest rates can vary from one card to the next.
Output:
C