Step 1: Concept Overview:
This question uses a quote from Toni Morrison's Beloved to identify the primary figure of speech.
Step 2: In-Depth Analysis:
The quote's impact comes from the contrasting ideas:
\[\begin{array}{rl} \bullet & \text{"yesterday": Represents the past, memories, and suffering, which the characters possess in excess.} \\ \bullet & \text{"tomorrow": Represents the future, hope, and a new life, which they urgently require.} \\ \end{array}\]The balanced structure emphasizing this opposition defines antithesis. The quote directly contrasts "more yesterday" with the need for "more... tomorrow."
Although hyperbole is present ("more yesterday than anybody"), the key rhetorical device is the contrast between past and future.
Step 3: Conclusion:
Antithesis is the most fitting figure of speech; therefore, option (B) is correct.