LSAT-15-4-15 【new environmentalism】

delta15. Magazine article: The Environmental Commissioner's new proposals are called "Fresh Thinking on the Environment" and a nationwide debate on them has been announced. Well, "fresh thinking" from such an unlikely source as the commissioner does deserve closer inspection. Unfortunately we discovered that these proposals are virtually identical to those issued three months ago by Tsarque Inc, under the heading "new Environmentalism" (Tsarque Inc's chief is a close friend of the commissioner). Since Tsarque Inc's polluting has marked it as an environmental nightmare in our opinion the "nationwide debate"can end here.

A flaw in the magazine article抯 reasoning is that it

(A) assumes without any justification that since two texts are similar one of them must be influenced by the other

(B) gives a distorted version of the commissioner抯 proposals and then attacks this distorted version

(C) dismisses the proposals because of their source rather than because of their substance

(D) uses emotive language in labeling the proposals

(E) appeals to the authority of Tsarque Inc's chief without giving evidence that this person's opinion should carry special weight

the key is C.不懂里面说的source和substance分别指的是什么？