Answer:
The correct answer for: Vocal sounds that are not included in one's native language first begin to disappear from usage during the ________ stage of language development Is: babbling.
Explanation:
To understand this answer we need to analyze all of the options.
1.- One word stage of language development is when children start to associate the sound with concepts, objects, and words. They start to associate that the fluffy big creature that barks and watches him is a dog. And they start to learn that word. And this is no pre-language level so it's wrong.
2.- Two-word is very similar to the one word, but in this case, children not only associate concepts or objects. But also actions and this is no pre-language level so it's wrong.
3.- telegraphic stage. This is super elevated and is when children start to form phrases but slow like a telegram. And there is no way this could be pre-language so it's wrong.
4.- Babbling is the first type of spoken way of communication babies make after crying. Babbling is expressions outside any language. So it's our correct answer.
