So now we bring in reality and real world assumptions that are NOT stated anywhere in the passage?

How can you say that X is wrong when the question specifically states that the statements above are TRUE?

Well then "art" in D can represent sculptures too. Art in D is very BROAD too. Need better verbiage and explanations with that confidence.

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"Another way to think about support is to “read between the lines.”" Then why did we learn that assumptions are wrong? Reading between the lines is pretty close to assuming.

Like njcooke03 said, thats a MAJOR assumption to think "urban" pollution refers only to a "major cities" pollution. Can someone else help explain why A is even in consideration without a moon analogy.