请教OG-104

hukai901

although the discount stores in Goreville's central shopping district are expected to close within 5 years as a result of  competition from a Spendless discount department store that just opened, those locations will not stay vacant for long. In the 5 years, since the opening of Colson's, a nindiscount 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 ture, most seriously weakens the argument?

A. many customers of Colson's are expected to do less shoping there than they did before the Spendless store opened

B. 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 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

困扰了很久。。求这道题解释。。答案B  多谢指教~

sdcar2010

God helps those who help themselves. Search for discussions of this question in older posts . . .

hukai901

我晕。。这道题的OG解释我看得都能背下来了，实在不明白什么意思。。哪位能用中文帮我解释一下？