Research Suggesting That Piaget May Have Underestimated Infants' Understanding About

Multiple Choice

Research suggesting that Piaget may have underestimated infants' understanding about object relations has been strengthened by recent research that has found

A) brain correlates for the capacity for object permanence.
B) object permanence in actions relying on the foot rather than hand.
C) object permanence in non-human primates
D) All of the alternatives are correct.