When John was 5 months old, he looked at a toy bear, but when his view of the bear was blocked, he did not search for it. Now that he is 9 months old he does look for it, reflecting the presence of

When John was 5 months old, he looked at a toy bear, but when his view

1.	When John was 5 months old, he looked at a toy bear, but when his view of the bear was blocked, he did not search for it. Now that he is 9 months old he does look for it, reflecting the presence of
A.	Object permanence
B.	Self-differentiation
C.	Assimilation
D.	Schemata
Answer» B. Self-differentiation