Which of the Following Examples Would Be Most Consistent with Marcus's

Which of the following examples would be most consistent with Marcus's (1996) rule-and-memory theory for children's choice of past-tense verbs?

A) Children systematically add "-ed" to every present-tense verb, to create a past-tense verb, and they remember this rule.
B) Children typically add "-ed" to present-tense verbs, but they have also learned the past tense of a small number of irregular verbs.
C) Children create a rule, based on adults' models of past tense, and the children store this rule in long-term memory.
D) Children keep a tally of the statistically likely pattern of past-tense words, and they retrieve this rule from memory when appropriate.