GWD题求助

缺氧

Although the discount stores in Goreville's central shopping district are expected to close within five years as a
result of competition from a Spend Less discount department store that just opened, those locations will not
stay vacant for long. In the five years since the opening of Colson's, a nondiscount department store, a new
store has opened at the location of every store in the shopping district that closed because it could not compete
with Colson's.

Which of the following, if true, most seriously weakens the argument?

(A) Many customers of Colson's are expected to do less shopping there than they did before the Spend Less
store opened.
(8) Increasingly, the stores that have opened in the central shopping district since Colson's opened have been
discount stores.
(C) At present, the central shopping district has as many stores operating in it as it ever had.
(D) Over the course of the next five years, it is expected that Goreville's population will grow at a faster rate
than it has for the past several decades.
(E) Many stores in the central shopping district sell types of merchandise that are not available at either
SpendLess or Colson's.

答案选B，这道题是什么意思啊？

sdcar2010

Google within this forum.

缺氧

谷歌上的英文看不大懂，求中文释义。不知道这道题到底什么意思？