we all know that babies make funny sounds. Little by little, babies learn that some sounds will call their mother and father. Other sounds will get them food. yet some sounds will bring them nothing at all. Babies learn to talk by finding out which sounds work best.

The story mainly tells
a. which babies make the loudest noises
b. why baby's first sounds are important
c. when babies first start to make noise
d. how babies aren't smart

Ans. c

I disagree.

To determine the correct answer, let's examine the given information. The passage discusses that babies make funny sounds and gradually learn that some sounds elicit responses from their parents, such as calling them or providing food. Additionally, babies learn to talk by figuring out which sounds are most effective.

Option a, which claims that the story mainly tells which babies make the loudest noises, is incorrect. The passage does not mention anything about the loudness of babies' noises being the focus.

Option b, which indicates that the story explains why baby's first sounds are significant, is also incorrect. Although the passage discusses that babies learn which sounds get their parents' attention or food, it does not specifically emphasize the importance of baby's first sounds.

Option c, which states that the story informs when babies first start making noise, seems to be the most accurate answer. The passage implies that babies start making sounds and gradually learn which ones will garner a response from their parents.

Lastly, option d, claiming that the story explains how babies are not smart, is incorrect. The passage does not make any statements indicating that babies are not intelligent.

Therefore, the correct answer is c.