Ramirez:The film industry claims that pirated DVDs, which are usually cheaper than legitimate DVDs and become available well before a film's official DVD release date, adversely affect its bottom line. But the industry should note what the spread of piracy indicates: consumers want lower prices and faster DVD releases.Lowering prices of DVDs and releasing them sooner would mitigate piracy's negative effect on film industry profits.

The argument above relies on which of the following assumptions?    


Releasing legitimate DVDs earlier would not cause any reduction in the revenue the film industry receives from the films' theatrical release. 

Some people who would otherwise purchase pirated DVDs would be willing to purchase legitimateDVDs if they were less expensive and released earlier than they are now.    

The film industry will in the future be able to produce DVDs more cheaply than is currently the case. 

Some current sellers of pirated DVDs would likely discontinue their businesses if legitimate DVDs were released faster and priced lower.    

Current purchasers of pirated DVDs are aware that those DVDs are not authorized by the film industry.    

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情景：Ramirez：电影行业认为，更便宜、上映速度更快的盗版DVD触碰了行业底线。但是电影行业就此应该意识到：消费者希望更低价格和更快的上市速度。降低价格并且早点儿出版将会缓和盗版碟带来的对利润的负面影响。

推理：相关因果推理。

（因）前提：正版碟的价格&出版速度与买不买正版碟有关系

（果）结论：正版碟价格低点儿出版速度快点儿大家就会买正版碟了

题目问我们此逻辑链的前提是什么，我们可以对选项进行取非，看看哪一个达到了削弱效果。

选项分析：

A选项：早一些出版正版碟不会减少电影行业从公映得到的收入：取非后，早一些出版正版碟会减少电影行业从公映得到的收入。我们讨论的是是否购买正版碟和正版碟价格、出版速度的关系。即使减少了从公映那里获得的收益，但如果大家不买盗版碟开始买正版碟，依旧会增加电影行业的profit。所以取非后，无法达到削弱效果。

B选项：正确。如果正版碟便宜些并且出版更快些，那些本打算买盗版碟的人愿意去购买正版碟：取非后，如果正版碟便宜些并且出版更快些，那些本打算买盗版碟的人不愿意去购买正版碟。这里切断了正版碟的价格&出版速度与买不买正版碟的关系，即，即使人家便宜卖、出版早，大家也不买，那依旧无法缓和盗版碟带来的负面影响。

C选项：电影行业在未来有能力更便宜地生产DVD：与能不能降低生产成本无关。

D选项：如果正版碟能便宜卖、出版早，盗版碟贩子将不会继续他们的生意：关键是消费者买不买，而不是商家卖不卖。取非后，如果正版碟能便宜卖、出版早，盗版碟还是会继续他们的生意。但如果消费者不去买盗版碟，继续盗版生意也没辙。

E选项：现在的盗版碟消费者意识到那些盗版DVD没有被电影行业授权：与授不授权、意没意识到无关。

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