Question

According to one major language theory, how did different groups develop their own languages?

Answer 1

since you provide no options,

in the early of the development, language was used to communicate and make their daily activities easier

hope this helps

Answer 2

According to one major language theory, how did different groups develop their own languages?

Answer: There are two main theories that explain how different groups developed their own languages. The major one is that humans at some point in time evolved a language acquisition device.

I hope it helps, Regards.