The answer would be Class system. The class system in social studies setting refers to the system to decide social rank that based on accomplishment and personal merits.
The status that Kelly's family get in the society is based on their diligent work in taking care of the merchant auto business.
I believe the correct answer would be all. In fact, babies start learning sounds BEFORE they are born.
I hope this helped you out! :)
Answer: learned to write and speak English
Explanation: