Elizabeth Spelke's Research into Infants' Understanding of the Nature of Objects

Elizabeth Spelke's research into infants' understanding of the nature of objects and how they behave indicates that

A) infants in the 2- to 3-month age category have some limited understanding of objects and how they behave.
B) infants in the 2- to 3-month age category have some understanding of the nature of objects, but little understanding about how objects will behave.
C) infants in the 2- to 3-month age category lack both object permanence and object concept cognitive skills, and are unable to understand objects or object behaviour.
D) infants in the 2- to 3-month age category understand remarkably well what objects are and what to expect about how objects will behave.