The correct comparison of the rhetorical devices used in the passages is:
Ain’t I a Woman? employs a rhetorical question, while the Declaration of Sentiments uses anaphora.
Sojourner Truth's speech includes rhetorical questions to provoke thought and highlight the contradictions in society regarding gender and race. Elizabeth Cady Stanton's Declaration of Sentiments employs anaphora, notably with the phrase "We hold these truths..." at the beginning of several statements to emphasize equality and rights.