全集$U=\{0,1,2,3\},C_{U}M=\left\{2\right\}$，则集合M=（   ）

根据短文意思及所给出的单词提示填空。

A. no longer    B. completely   C. compete    D. given up   E. encourage

   Though the sale of bottled water is still on the rise. Certain policy makers have taken steps to reduce it and ____ people to drink tap water. In September 2009, the Australian city of Bundanoon became the first city in the world to ____ stop bottled water from being sold in stores, building water fountains instead.

   Among the cities in America that have taken action are San Francisco and Seattle, which ____buy water for city use, and Chicago which adds a five-cent tax on each bottle. Several restaurants in those cities have also ____ bottled water for tap water. Other cities are also considering taking action.