Choice B but you have miswritten or misread 8/21 as 8/12
if you know the username then im sure you can look it up
Answer: You don give any of the options but an atom of oxygen can be written as O
Explanation:
At some point during the babbling stage, babies begin to lose their ability to discriminate sounds that they never hear.
<h3>
What is Babbling stage?</h3>
This is referred to as prelinguistic stage of infants when the larynx starts to drop to create pharyngeal cavity.
They are usually more attentive and willing to learn hence the reduction in sound discrimination.
Read more about Babbling stage here brainly.com/question/7986524
#SPJ1
