500
Which of the following statements best describes researchers' current view of young infants' ability to mentally represent objects?
a) young infants are able to mentally represent objects, but they do not have any expectations about the behavior of objects that are out of sight
b) young infants are able to mentally represent objects, but they are unable to act on these mental representations
c) young infants are able to mentally represent objects and to act on these mental representations
d) young infants are unable to mentally represent objects
c) young infants are able to mentally represent objects and to act on these mental representations