阅读下面短文，从短文后所给的A、B、C、D四个选项中选出能填入相应空白处的最佳选项。
A lot of people are interested in visiting museums. There are many11 kinds of museums in the world. But have you ever12 a museum of tap water （自来水）？Beijing's Museum of Tap Water may be the only one in the world.
The museum has a large13 of photos，models，maps and equipment （设备）（处理） history of China. The museum has three14 . The first part is about Beijing's first tap water company，the second is about the development of tap water and the third tells the progress （进展） of it. The museum shows how the 12 million people of Beijing get water now15 .
Beijing's tap water history began in 1908. At that time，Empress Dowager Cixi ordered people to build water factories and city pipes to help11 fires in Beijing.
At first，people did not believe in tap water. They continued using well water（井水），but it was not12 . Later on，the government did everything to tell people how safe tap water was. Finally，more and more people13 well water and started to use tap water.
The museum is one of the most wonderful places in Beijing. People can not only14 the water they get every day，but also know about Chinese history. For those who want to try something different，this place is15 one of the best choices.
