From what I learned it health class it’s 60%
Answer:
american board of physical medicine
Explanation:
Here is the answer. "<span>Cooing, Vowels, Babbling, Naming Explosion" is the typical order of the development of spoken language in an infant. When we say infancy, this refers to the age of the child who are under a year old. During this age, their only attempt to start language is to recognize and learn basic sounds.</span>
