The migration of rural residents to Oklahoma's towns and cities after World War II and through the 1980s and 1990s has reduced populations to such a degree that some villages in
parts of the state have disappeared. ITS C
A northern
В. southern
C. western
D. eastern

d.summerains, the last one

c 3 branches because idk why they had 3 well when:

you think of it there are still contrys with 3

a.) a poor farmer, due to the fact that they would want to be freed from british rule.

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.