The passage suggests which one of the following about Cullen's use of controlled poetic forms?
The lines that support answer choice (A) are found in the first paragraph (lines 9-11). As far as answer choice (B) is concerned, while it is true that Countee Cullen frequently employed classical allusions and Christian religious imagery, we cannot be certain that it was his use of religious themes that led to his use of controlled poetic forms. In a way, answer choice (B) is mistaking correlation for causation. We know that Cullen used religious imagery and that he used controlled poetic forms, but we don't know that the religious imagery led to the controlled poetic forms.