Art critic: Criticism focuses on two issues: first, whether the value of an artwork is intrinsic to the work; and second, whether judgments about an artwork’s quality are objective rather than merely matters of taste.
Conclusion
The issue of whether the value of an artwork is intrinsic to the work is related to the issue of whether judgments about a work's quality are objective or matters of taste.
Evidence (for) + Intermediate Conclusion (thus)
If an artwork's value is not intrinsic, then it must be extrinsic (in which case judgments about the quality of the work can only be a matter of taste.)
Evaluate
This is a pretty brutal argument to understand on a first read. The main conclusion is only claiming that "whether value is intrinsic vs. extrinsic" is related to whether .
She establishes a binary we probably already assumed: If it's not intrinsic, then it must be extrinsic
But then she goes from "extrinsic" via the Conclusion indicator thus to the idea that "judgments about quality would be based on taste".
This seems to be the reasoning move where the author is making a big assumption. The question stem asks what the argument "takes for granted", so we're being asked for a Necessary Assumption.
Goal
The author thinks that this chain exists:
not intrinsic → extrinsic → judgments about quality are just a matter of taste
The link between 1 and 2 is provided to us by the conditional .
But the link between 2 and 3 is just assumed as the author moves from "extrinsic" to "quality judgments are only a matter of taste" via a conclusion indicator. Let's look for that missing link.