Millie Is Only 14 Months of Age, but Has Already

Multiple Choice

Millie is only 14 months of age, but has already started using some basic word like "mama," "dada," and "kitty." When her parents take her to the zoo, she points to the goats who are being fed by other children, and yells, "KITTY!" The fact that she is lumping a new animal into her existing schema of a kitty demonstrates

A) ​irreversibility.
B) ​assimilation.
C) ​accommodation.
D) ​egocentrism.