Juan and His Little Sister, Anne, Are Each Given a Large

Multiple Choice

Juan and his little sister, Anne, are each given a large cookie. Their mother breaks Anne's cookie into four pieces to help her eat it more easily. Juan immediately begins to cry and says that it is not fair for his sister to get so many cookies when he only has one. Juan is showing a lack of:

A) constancy.
B) conservation.
C) intuition.
D) symbolic function.