PREP中的一道!谢谢!

Roland:  The alarming fact is that 90 percent of the people in this country now report that they know someone who is unemployed.

Sharon:  But a normal, moderate level of unemployment is 5 percent, with 1 out of 20 workers unemployed.  So at any given time if a person knows approximately 50 workers, 1 or more will very likely be unemployed.

Sharon's argument is structured to lead to which of the following as a conclusion?

(A) The fact that 90% of the people know someone who is unemployed is not an indication that unemployment is abnormally high.

(B) The current level of unemployment is not moderate.

(C) If at least 5% of workers are unemployed, the result of questioning a representative group of people cannot be the percentage Roland cites.

(D) It is unlikely that the people whose statements Roland cites are giving accurate reports.

(E) If an unemployment figure is given as a certain percent, the actual percentage of those without jobs is even higher.

为什么不选A啊,谢谢解答!

  这是一道归纳题，我觉得也是a，og紫皮书好像有这道题，B) The current level of unemployment is not moderate. （和sharon的相反）

(C) If at least 5% of workers are unemployed, the result of questioning a representative group of people cannot be the percentage Roland cites. （sharon没说至少5%，后面的也没提及）

(D) It is unlikely that the people whose statements Roland cites are giving accurate reports. 没提及

(E) If an unemployment figure is given as a certain percent, the actual percentage of those without jobs is even higher.没提及

prep给的答案也是A