Last year the rate of inflation was 1.2 percent, but during the current year it has been 4 percent. We can conclude that inflation is on an upward trend and the rate will be still higher next year.
Which of the following, if true, most seriously weakens the conclusion above?
(A)The inflation figures were computed on the basis of a representive sample of economic data rather than all the avialable data.
(B)Last year a dip in oil prices brought inflation temporarily below its recent stable annual level of 4 percent.
(C)Increases in the pay of some workers are tied to the level of inflation, and at an inflation rate of 4 percent or above, these pay raises constitute a force causing further inflation.
(D)The 1.2 percent rate of inflation last year represented 10 year low.
(E)Government intervention cannot affect the rate of inflation to any significant degree.
请教大牛，为什么我觉得正确答案B选项是支持失业率会更高这一推断，而不是weaken呢？
B是说去年原油价格下跌导致该年通货膨胀率小于正常的4%。
题目认为存在an upward trend导致以后继续上升，选项B正好给出他因。
Last year 1.2 percent + current year 4 percent --> an upward trend
文章假定：两年的数据能够呈现出趋势
削弱：打破假定 B的temporarily表明以前一直是4%
感谢牛牛指教
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