The "cat in the hat" experiment shows that select one from the following:
a. hearing is not functional until birth
b. maternal behavior does not affect the developing fetus
c. fetuses can learn sound patterns
d. there is no learning prenatally

The "Cat in the Hat" experiment shows that c) fetuses can learn sound patterns.

Explanation:

Scientist De Casper conducted the "Cat in the Hat" experiment in pregnant females and proved that fetuses can recognize sound patterns. In a follow up study, he made expecting women read a book passage from "Cat in the Hat" to their babies throughout the last 6.5 weeks of the pregnancy.

After the babies were born they were given two different pacifiers connected to sensors, when sucking on one of them they could hear their mother's voice and on the other one, another woman's voice. The result was that most babies chose to suck on the pacifier with the voice reciting "Cat in the Hat" regardless it was their mother's voice or not.

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