Children Will Often Form the Correct Past Tense of a Verb

Children will often form the correct past tense of a verb shortly before or after using the incorrect past tense of a verb.One explanation for why children overregularize at some times and not others is that

A) children want the attention they receive when being corrected for using the wrong form of a verb.
B) children may forget the exception to a general rule for forming tense.
C) children are unaware that one form is correct and one is not.
D) children who overregularize lack a neurological function necessary for the discrimination of correct and incorrect verb tenses.