单选题：Section 1Directions：Each of the following passages is follow

Section 1
Directions：Each of the following passages is followed with five questions. For each question there are four choices. Choose the best answer to eachquestion. Then blacken the corresponding letter on the Answer Sheet.
Passage One：
Questions 16 to 20 are based on the following passage：
Reaching new peaks of popularity in North America is Iceberg Water, which is harvested from icebergs off the coast of Newfoundland, Canada．
Arthur von Wiesenberger, who carries the title Water Master, is one of the few water critics in North America． As a boy, he spent time in the larger cities of Italy, France and Switzerland, where
bottled water is consumed daily. Even then, he kept a water journal, noting the brands he liked best. “My dog could tell the difference between bottled and tap water,” He says.
But is plain tap water all that bad? Not at all. In fact, New York’s municipal water for more than a century was called the champagne of tap water and until recently considered among the best in the world in terms of both taste and purity. Similarly, a magazine in England found that tap water from the Thames River tasted better than several leading brands of bottled water that were 400 times more expensive.
Nevertheless, soft-drink companies view bottled water as the next battle-ground for market share—this despite the fact that over 25 percent of bottled water comes from tap water：PepsiCo’s Aquafina and Coca-Cola’s Dasani are both purified tap water rather than spring water.
As diners thirst for leading brands, bottlers and restaurateurs salivate（垂涎） over the profits. A restaurant’s typical mark-up on wine is 100 to 150 percent, whereas on bottled water it’s often 300 to 500 percent. But since water is much cheaper than wine, and many of the fancier brands aren’t available in stores, most diners don’t notice or care.
As a result, some restaurants are turning up the pressure to sell bottled water. According to an article in The Street Journal, some of the more shameless tactics include placing attractive bottles on the table for a visual sell, listing brands on the menu without prices, and pouring bottled water without even asking the diners if they want it.
Regardless of how it’s sold, the popularity of bottled water taps into our desire for better health, our wish to appear cultivated, and even a longing for lost purity.
What do we know about Iceberg Water from the passage? A．It is a kind of iced water.
B．It is just plain tap water.
C．It is a kind of bottled water.
D．It is a kind of mineral water.