How Did Conflicts Within the Iroquois Confederacy in the Eighteenth

Multiple Choice

How did conflicts within the Iroquois Confederacy in the eighteenth century enable English settlers in Pennsylvania to pry more land away from the Indians?

A) The English appealed to a weak chief and used him against the others to get land.
B) One chief did not hold up his side of the bargain within the Confederacy and was forced to give up his land.
C) One Iroquois chief declared his authority over the Delaware Indians by giving a portion of their land to the English.
D) While Indians fought each other, the English occupied their land and refused to move.