neurolinguists is best defined as 1 .the study of langage complexity 2.a branch of speech theory 3. the study of linguists and brain structure and function 4. the study of language acquisition . Is 3 correct

Right.

Yes, option 3 is correct. Neurolinguistics is indeed the branch of linguistics that focuses on studying the relationship between language and the structure and function of the brain. It explores how different aspects of language, such as grammar, syntax, phonetics, and semantics, are processed and represented in the brain. To confirm the correct answer, you can also consult reliable sources like linguistic textbooks or reputable websites that provide information on neurolinguistics.