天山9－32 一直没有人问

Q32:
Ecologist: The Scottish Highlands were once the site of extensive forests, but these
forests have mostly disappeared and been replaced by peat bogs. The common view is
that the Highlands’ deforestation was caused by human activity, especially agriculture.
However, agriculture began in the Highlands less than 2,000 years ago. Peat bogs,
which consist of compressed decayed vegetable matter, build up by only about one foot
per 1,000 years and, throughout the Highlands, remains of trees in peat bogs are
almost all at depths great than four feet. Since climate changes that occurred between
7,000 and 4,000 years ago favored the development of peat bogs rather than the survival
of forests, the deforestation was more likely the result of natural processes than of human
activity.
In the ecologist’s argument the two portions in boldface play which of the following
roles?
A. The first is evidence that has been used in support of a position that the ecologist
rejects; the second is a finding that the ecologist uses to counter that evidence.
B. The first is evidence that, in light of the evidence provided in the second, serves
as grounds for the ecologist’s rejection of a certain position.
C. The first is a position that the ecologist rejects; the second is evidence that has
been used in support of that position.
D. The first is a position that the ecologist rejects; the second provides evidence in
support of that rejection.
E. The first is a position for which the ecologist argues; the second provides
evidence to support that position.

answer：b

mine：a

我觉得b不对啊

可是b我觉得也不对啊

b说 第一个黑脸，根据（in light of）第二个黑脸，作为作者反对一个 position的基础

我对这个in light of 感觉不爽

any further help please

a的错误是第二个黑脸不是finding还是说他不是用来反对第一个的那?

恩，明白了，谢谢

这题我也不知道选哪个，如果非要选，只能选B了。