Which Statement Provides Evidence That Receptive and Productive Vocabularies Are

Multiple Choice

Which statement provides evidence that receptive and productive vocabularies are different in young children

A)  An infant will discriminate among speech sounds from a variety of languages. 
B)  An infant will preferentially attend to the speech of caregivers rather than strangers. 
C)  A toddler will follow an instruction that uses words that she does not say yet. 
D)  A toddler will apply a grammar rule inappropriately.