What is NOT an item of evidence Chomsky would use to support the idea of an inborn language learning mechanism

Question

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Chomsky would not use the observation that the language learning in young children is different across cultures as evidence of an inborn language learning mechanism. This is because this observation suggests that external cultural factors rather than an internal mechanism may play a role in language acquisition. Chomsky's theory of universal grammar suggests that all humans are born with a set of innate linguistic principles that allow them to learn any human language, regardless of their cultural background. Therefore, the fact that language learning is similar for children from diverse backgrounds (choice C) would support Chomsky's theory. Similarly, the observation that children learn language quickly and effortlessly (choice A) and that the errors in child speech are common and indicate lawfulness (choice B) would also support his theory.

What Is NOT an Item of Evidence Chomsky Would Use