题目内容：
根据以下材料回答：
Consumers had better choose a providerof a credit card with __________
[A] the promise of giving their money backon their purchases
[B] the rewards in the form of a check
[C] a reasonable rate and reward for usingtheir card
[D] the chance of giving their money backin a short time
参考答案：
答案解析：