[单项选择]Questions 57 to 61 are based on the following passage.
It was going to have roughly the effect of a neutron bomb attack on high streets and shop ping malls. The buildings would be left standing but the people would vanish. Such was the superior efficiency of selling things via the Internet that brick-and-mortar stores would be unable to compete on price, choice or even service. Book and music sellers had already been "Amazoned". Soon web-based "category-killers", in everything from toys to pet supplies, would overwhelm their physical-world competitors. Shoppers would never be more than a mouse-click from the best deals. Traditional retailers, terrified of cannibalizing (同类相食) sales and destroying the value of their expensive properties, were already too late to meet the challenge. "In some categories," said Mary Meeker, a seer (预言家) of the Internet at Morgan Stanley, "it’s already game over."
These are convenient beliefs for anyone justifying some e-c
A. is a flexible means of communicating
B. is not just a means to gaining an end
C. does not provide an alternative to physical enjoyment
D. provides a perfectly easy and efficient way of living