Two-Month-Old Michael Likes to Look at the Soft, Multicoloured Ball

Multiple Choice

Two-month-old Michael likes to look at the soft, multicoloured ball in his crib, but the new black-and-white ball has recently gained his attention. Habituation has occurred, meaning that

A) Michael no longer remembers the stimulus he has seen previously.
B) Michael has a short attention span.
C) a complex form of learning has taken place.
D) Michael has gotten used to a stimulus (the multicoloured ball) .