One of Chomsky's most persuasive arguments for refuting Skinner's theory of language acquisition was his observation that children
A. produce sentences they have never heard.
B. show similar language development across cultures.
C. are rewarded for using correct language.
D. learn to follow complex language rules, even though they are not aware of doing so.

A - Children produce sentences they have never heard

Explanation:

Carol Doris Chomsky is an American education specialist that majored her interests in language acquisition of children. She refuted theories made by one of the most influential American psychologists B. F. Skinner due to his stance on children being able produce sentences they have never heard. Children were said by skinner to have the ability to produce infinite number of sentences they never learnt through conditioning.  

the first part is ocean

explanation:

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.