Answer:
A regional or social variety of a language distinguished by pronunciation, grammar, or vocabulary, especially a variety of speech differing from the standard literary language or speech pattern of the culture in which it exists.
or
A variety of language that with other varieties constitutes a single language of which no single variety is standard.
Hope this helps :)
C. formal regions are known as "formal" because of the characteristics known by the people who live there and/or visit there
The model shows that firms and household benefit from one another! hope this helps :)
