2. (C)
Question type: Identify a Flaw
The flaw in this argument is one of conditional logic. The author incorrectly assumes that the natural world shares characteristics with art, it must be art. We can represent the flaw in conditional notation as follows:
If Art => Beautiful and Instructive. Therefore, if Beautiful and Instructive => Art.
Don’t see the flaw? Consider the following conditional, which is flawed in the same manner:
If Whale => Smart and Lives in the ocean. Therefore, if Smart and Lives in the ocean => Whale.
(C) accurately represents this flaw.
(A) is incorrect because the word "beautiful" is not inherently vague.
(B) is incorrect because it misrepresents the argument.
(D) is incorrect because of interpretation.
(E) is only relevant to an incorrect understanding of the conclusion.