Bartlett and Carey Demonstrated Children's Developing Vocabularies in the Course

Bartlett and Carey demonstrated children's developing vocabularies in the course of normal conversation by inventing the color "chromium." The findings of this study suggest:

A) children learn by imitation.
B) direct teaching of new vocabulary words is most effective.
C) children acquire language because adults explicitly reward their efforts.
D) children can learn new words when they occur in a close relationship with a familiar action.