Marla hides Ramy's favorite toy under a blanket while Ramy watches. Ramy removes the blanket and squeals when he sees the toy. Marla again hides the toy, but this time under a different blanket. Even though Ramy saw where Marla hid his toy, he still looks under the first blanket and not the second one. Ramy has displayed:
A. the A-not-B error CorrectB. habituationC. lack of object permanenceD. lack of centration