A 6-month-old watches a toy car go down a track, behind a curtain, and apparently through a block that should have stopped it. How does the child react, if at all? (And what conclusion do psychologists draw?) (Q13)
A. The child looks away. (The child has lost interest).
B. The child reaches toward the toy car. (The child lacks the concept of conservation.)
C. The child stares longer than usual. (The impossible result surprised the child.)
D. The child does not react at all. (The child lacks the concept of object permanence.)