Answer:
d) language acquisition device
Step-by-step explanation:
Language acquisition device refers to the module which states that their lies an innate knowledge in the mind of the children about language acquisition. It is a hypothetical assumption their children posses some preconceived knowledge about language learning. Noam Chomsky proposed the concept where he stated that the infants possess some capacity in their mind by which they learn, acquire and produce language. In the given situation, Chomsky's language acquisition device is attributed in the activities of Susan.