BTGmoderatorDC wrote:Like other educators who prefer to substitute anthologies of short stories or collections of popular essays to dull "basal readers," Ms. Burton emphasizes how important it is to enjoy good literature.

(A) to dull "basal readers," Ms. Burton emphasizes how important it is to enjoy
(B) for dull "basal readers," Ms. Burton emphasizes the importance of enjoying
(C) to dull "basal readers," Ms. Burton emphasizes that it is important to enjoy
(D) for dull "basal readers," Ms. Burton's emphasis is that it is important to enjoy
(E) to dull "basal readers," Ms. Burton's emphasis is on the importance of enjoying

The intended meaning of the sentence is that Ms. Burton is like other members of a group, namely the group of educators who prefer anthologies of short stories or collections of popular essays to dull "basal readers."
Both Ms. Burton and the other educators emphasize the importance of enjoying good literature.

Three of the answers begin with the preposition "to", and two of the answers begin with the preposition "for."
When prepositions change in the answer choices, check the sentence for idiom errors.

Ms. Burton is like other educators who prefer to "substitute anthologies of short stories or collections of popular essays to dull 'basal readers'."
We can simplify the quoted portion of the sentence by replacing the nouns with letters.
Ms. Burton is like other educators who prefer to "substitute X or Y to Z"
The correct idiom is "substitute X or Y for Z."
Eliminate choices A, C, and E, because they employ the wrong preposition.

The original sentence begins with a prepositional phrase, "like other educators. . . ."
The prepositional phrase acts as a modifier, modifying the noun that follows the comma.
Choice E suggests that Ms. Burton's emphasis is like other educators.
Choice B suggests that Ms. Burton is like other educators.
The correct answer is choice B.