The Tribes of the Iroquois Confederacy - Accomplishment

The tribes of the Iroquois Confederacy were distinctive in that they:

(A) were less militant than other Native American (Indian) tribes.
(B) all allied themselves with the American colonists against Great Britain during the Revolutionary War.
(C) successfully resisted incorporation into the English fur-trading system.
(D) were converted to Anglicanism.
(E) formed the most important Native American political organization to confront the colonists.