Select all that apply. Why do dialects develop? 1. isolated geographical areas influence language change 2. contact with the general American 1 mainstream 3. cultural influences 4. ethnic background

Let's look at all the options:

1. isolated geographical areas influence language change

-this is in fact the best explanation for why dialects develop! the correct answer!

2. contact with the general American mainstream

-no, this rather leads to the disappearance of dialects

3. cultural influences

-let's take an example: in former Yugoslavia, Serbo-Croatian developed into several dialects because people had different religions, so it's correct!

4. ethnic background

-I think that a good example for such a dialect is Black Vernacular English, so correct!