诱发骨质疏松的病因不包括（）。

A.绝经期妇女体内雌激素减少

B.长期大量饮咖啡、浓茶等

C.缺乏体育锻炼

D.膳食结构中钙的补充不足

E.长期服用维生素片

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.