Question 8
In the argument given above, the two portions (the second and last sentences) play which of the following roles?
A. The first is a claim that challenges the main conclusion; the second is the main conclusion.
B. The first is a judgment made by the argument about a certain explanation; the second is that explanation.
C. The first is an observation that calls into question an observed phenomenon; the second is the main conclusion of the argument.
D. The first is a claim that the argument sets out to prove; the second limits the extent of this claim.
E. The first is an intermediate conclusion; the second is the primary conclusion.
我的答案： 无