Which of the following statements best defines dialects?

A. Dialects are the result of deficient language skills.

B. Only people in the lower classes use dialects.

C. Dialects are good predictors of cognitive skills.

D. Dialects are geographic variations in language patterns.

The correct answer that best defines a dialect is that (D) Dialects are geographic variations in language patterns. It is a specific form of language that is mainly unique to a certain region or location or community or social group. Dialects has its own language patterns that is mainly peculiar to that specific group.