Alcohol-control advocates argue that television advertising plays a large role in leading teenagers to drink. In Hungary, however, where television advertising of alcoholic beverages has been prohibited since 1980, teenage alcohol use is higher than in some other European countries where such advertising is allowed.
Which of the following statements draws the most reliable conclusion from the information given above ？（）

A. Hungarian culture, in general, views alcohol use more positively than do most other European cultures.

B. Television advertising is the most effective way to encourage consumers to try a new alcoholic beverage.

C. Television advertising cannot be the only factor that affects the prevalence of teenage drinking.

D. Alcohol use among Hungarian teenagers has increased in recent years.

E. Alcohol abuse is the greatest threat facing Hungarian teenagers.

DDR SDRAM最重要的的改变在界面数据传输上。它在时钟信号上升缘与下下降缘各数据传输速率为传统SDRAM的（）倍。

A.2

B.3

C.4

D.8