What primarily caused dialects to develop within the United States?

A.
A lack of available transportation between the regions.

B.
Differences in the climate between the regions.

C.
Differences in the dialects among the original settlers along the Atlantic Coast colonies.

D.
Diffusion going westward.

The answer to this question is  c. pharmaceutical accumulation  reclaimed water refers to the water that being used again after it already  used for agricultural purposes.this type of water often contains pharmaceutical accumulation because of the chemical fertilizer that is used for the plants is absorbed into the water.

Themes; subfields is the answer

Answer (a) the itcz comes overhead for part of the year; i believe this is correct,plz check first; ///

Answer mauritania is in the northwestern part of african, meaning its in the western hemisphere, and how do i know/ the map showed me so; ///: )