The Correct answer is B.
Explanation
Only “triteness” logically completes the sentence; a poem echoing routine feelings might well be described as possessing “triteness,” in contrast to the fresh and unexpected ideas that Anne Spencer’s poems go on to express.

Critical Reading > Sentence Completions
Choose the word or set of words that, when inserted in the sentence, best fits the meaning of the sentence as a whole.
The language of Anne Spencer’s poetry conveys an impression of ------- that can be misleading: just when a poem seems to be echoing routine feelings, the diction suddenly sharpens to embody fresh and unexpected ideas.
(A) frivolity
(B) triteness
(C) diversity
(D) lyricism
(E) precision