The rapid growth and development of the West after 1815 was
stimulated by:
A. the lure of cheap land to easterners and European immigrants.
B. construction of new federal roads heading west.
the subduing of Shawnee and Creeks during the War of 1812.
D. cracker culture occupying the land ahead of the cotton boom.
E. expansion of cotton culture.
E. all of the above.