The answer to <em>"Which best identifies the sentence that contains a misplaced modifier?"</em> is C: (Drawn to the best of his ability), the art judges were very impressed by it.
A misplaced modifier is a <u>phase, word or clause that is separated from the word it describes or modifies.</u>
In this case the misplaced modifier( <em>"drawn to the best of his ability"</em>) is a <u>misplaced clause</u> which is supposed to describe how the work(<em>"it"</em>) was made. The best way to fix a misplaced clause is to<u> put it next to the word it is meant to modify</u> (<em>The art judges were very impressed by the work drawn to the best of his ability</em>)