Early Explanations of Language Development Rested Heavily on the Roles

Multiple Choice

Early explanations of language development rested heavily on the roles of modeling and reinforcement in learning language. Which one of the following children's utterances casts doubt on the idea that modeling and reinforcement are sufficient to explain how children acquire language?

A) "More!"
B) "No do dat no more!"
C) "Where are you going?"
D) "Peek-a-boo, I see you!"