Susan is a 21-month-old who has just begun to make two-word sentences. her sentences already reveal the grammar of her native language, as she orders her nouns and verbs in the order that mature speakers of her language use. chomsky would attribute susan's quick acquisition of grammatical rules to her

Chomsky would attribute Susan's quick acquisition of grammatical rules to her language acquisition device (LAD). it is a system of principles that children are born with which helps them learn a language. It may account for the order children learn structures and the mistakes they might make while learning. 

The correct answer is a.f.c