After the Iroquois Confederacy Repudiated the 1784 Treaty of Fort

After the Iroquois confederacy repudiated the 1784 Treaty of Fort Stanwix,

A) Congress formally recognized the Iroquois Confederacy as sovereign in the Northwest Territory.
B) Congress allowed the Creeks to retain their ancestral lands if they would ally with the United States against the Iroquois Confederacy.
C) New York State began to purchase large tracts of land from individual Iroquois nations, thus reducing the Confederacy by 1790 to a few scattered reservations.
D) Congress declared war on the Confederacy and confiscated all its lands.