How Would Chomsky Most Likely Explain a Young Child Saying,"I

Multiple Choice

How would Chomsky most likely explain a young child saying,"I runned around the house"

A)  The child imitated an ungrammatical sentence spoken by another child. 
B)  The child learned the rule for making the past tense of verbs as a result of hearing the speech of others. 
C)  The child had previously been reinforced for saying, "I run around the house." 
D)  The child imitated the ungrammatical speech of an adult.