A Child Who, at an Early Age, Used Irregular Verb

Multiple Choice

A child who, at an early age, used irregular verb forms correctly (using grow and its past tense grew) suddenly began using growed instead of grew. This child

A) is regressing to a more comfortable state instead of learning to abstract the rules of grammar.
B) is extracting the rules for how to form tenses and applying those generalizations to words that seem similar.
C) has had an inadequate amount of parental input into the language learning process.
D) needs more intense educational programs to learn the rules of grammar.