An infant is sucking on a nipple. Meanwhile, an investigator plays the sound "ba" repeatedly until the infant habituates to it. Then the investigator plays the sound "pa." What does the infant do, and what does that behavior indicate?
A) The infant sucks more rapidly, indicating that it prefers the sound "pa" to "ba."
B) The infant sucks more rapidly, indicating that it can detect the difference between "pa" and "ba."
C) The infant sucks at the same rate as before, indicating that it cannot detect the difference between "pa" and "ba."
D) The infant sucks more slowly, indicating that the change of stimulus increased the rate of habituation.
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