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

a. amniotic fluid blocks sound waves from reaching the fetus.
b. the fetus could not learn before birth, but infants can learn right after birth.
c. the fetus could learn even before birth.
d. the infants showed equal interest in both stories.