Answer:
Behavioral language acquisition
Explanation:
The behavior theory of language was purposed by J.B Watson. This is the theory of native language learning. It is the reaction in traditional grammar. Behaviorism was advanced in America. It was the new approach in America in the 20th century.
Learning occurs by the association between behavior and the consequences. Stimulus and response work in a manner. Through trial and error. This is the fact due to which people create novel sentences.
Children learn the syntax, even they are not motivated for this work. This indicated the weakness in that language acquisition view.