The Book of Kells, an illumination of the four gospels

OFFICIAL SOLUTION

Notice, the “such … as” construction may involve the two words next to each other, or (as is far more likely on the GMAT SC!) separated by a word or words followed by an extended modifier.  Notice also that the use of “like” for a list of examples is always incorrect on the GMAT.

The second sentence, about the Book of Kells, a work of which I am deeply enamored, explores the “like” / ”as” / ”such as” split in a list of examples.  That sentence gives an example of “foreign pigments”, and the two examples are “indigo from India and lapis lazuli from Afghanistan.”  The possibilities are

Incorrect = “foreign pigments like indigo etc.” (none of the answers)
Correct = “such foreign pigments as indigo etc.” (answers (D) & (E))
Incorrect: “foreign pigments as indigo etc.” (missing the word “such”, answer (C))
Incorrect: “such foreign pigments like indigo etc.” (the disastrous “such…like” combination, answers (A) & (B).

That split immediately narrows the choices down to (D) and (E).  To finish the problem off, we need to consider the near-ubiquitous issue of parallelism.  The words “demonstration/demonstrated” and “incorporation/incorporated” need to be in the same form: in fact, they both need to be verbs, so that the subject “the Book of Kells” has a bonafide verb.  The only answer to get all of these correct is (E).