When a child exhibits the A not B error, he or she:

a. fails to habituate to a new stimulus after viewing an old stimulus
b. fails to combine two individual schemes in order to reach a goal (e.g. to push one object out of the way to reach another)
c. notices a correlation between two things and incorrectly infers that one factor caused the other factor
d. looks for an object where it has been previously found rather than where it has just been seen

Ans: d. looks for an object where it has been previously found rather than where it has just been seen