Use the excerpt from the 1837 message of Brigadier General John E. Wool to the Cherokee Nation to answer the question. The statement from Wool reflects the fact that U. S. domestic policy makers recognized that

A.
the Cherokee were intruding on land owned by other groups.

B.
accommodations had to be made to preserve Indian territory in place.

C.
Indian territory in the black belt had now become very valuable.

D.
western expansion had begun driving settlers to the industrialized North.