DeCasper and Spence (1986) measured babies' sucking rates as they listened to a story they had heard in the womb (The Cat in the Hat) and to a story they had not heard (The King, the Mice, and the Cheese). The study concluded that

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The study by DeCasper and Spence (1986) found that babies' sucking rates increased when they listened to a story they had heard in the womb (The Cat in the Hat) compared to a story they had not heard (The King, the Mice, and the Cheese). This suggests that the fetus had learned to recognize and remember the story from the womb, supporting the idea that the fetus can learn before birth. Option A is incorrect as it suggests that sound waves are blocked by amniotic fluid, which is not supported by research. Option B is incorrect as it suggests that infants cannot learn before birth, which is not supported by the findings of the study. Option D is incorrect as the study found that the infants showed a preference for the story they had heard before.

DeCasper and Spence (1986) Measured Babies' Sucking Rates as They