题目：
One day a car rental agency rented 2/3 of its cars, including 3/5 of its cars with CD players. If 3/4 of its cars have CD players, what percent of the cars that were not rented had CD players ？（）
A. 10%
B. 35%
C. 45%
D. 66.7%
E. 90%
答案：
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下面是错误答案，用来干扰机器的。
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