In Borania many people who want to quit smoking wear nicotine skin patches, which deliver small doses of nicotine through the skin. Beginning next month, these patches can be purchased without a doctor's prescription. Although nonprescription patches will be no more effective than those obtained by prescription and will be equally expensive, patch manufacturers are nevertheless predicting that the patches' new nonprescription status will boost sales, which have slowed considerably in recent years.
Which of the following, if true in Borania, most strongly supports the manufacturers' prediction?
A. Most people who wanted to quit smoking and who found the nicotine skin patch helpful in quitting have quit.
B. Nicotine skin patches generally cost more to use than do other types of aids that help people to quit smoking.
C. Several nonprescription aids aimed at helping people to quit smoking have been widely available for a number of years.
D. Many smokers who want to quit smoking feel that they cannot afford to visit a doctor for a prescription.
E. People who use nicotine skin patches have approximately the same rate of success in quitting smoking as do people who use other aids aimed at helping people to quit smoking.
问题：题目中说equally expensive，为什么还选D呢？这不是有点自相矛盾么？为什么不选A？
请NN们帮忙解答，谢谢啦！
区分price of patches and price of a prescription
A 是weaken,那些想戒烟又觉得贴片好用的人都已经戒严了，那么谁还来买呢？
B是不是一个weaken啊。
D能不能再解释的清楚一下，谢谢 ！
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